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<span class="vector-toc-numb">2</span> <span>Users</span> </div> </a> <ul id="toc-Users-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Exposure" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Exposure"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Exposure</span> </div> </a> <ul id="toc-Exposure-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Fraud_investigation_and_trial" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Fraud_investigation_and_trial"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Fraud investigation and trial</span> </div> </a> <ul id="toc-Fraud_investigation_and_trial-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Successors" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Successors"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Successors</span> </div> </a> <ul id="toc-Successors-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-See_also" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#See_also"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>See also</span> </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#External_links"> <div 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data-event-name="pinnable-header.vector-appearance.unpin">hide</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Bogus bomb detector</div> <p>The <b>Quadro Tracker</b>, also known as the <b>Positive Molecular Locator</b>, was a fake "detection device" sold by Quadro Corp. of <a href="/wiki/Harleyville,_South_Carolina" title="Harleyville, South Carolina">Harleyville, South Carolina</a> between 1993 and 1996. Around 1,000 were sold to police departments and school districts around the <a href="/wiki/United_States" title="United States">United States</a> on the basis that it could detect hidden drugs, explosives, weapons and lost golf balls. In 1996, the <a href="/wiki/FBI" class="mw-redirect" title="FBI">FBI</a> declared it to be a fake and obtained a permanent injunction barring the device from being manufactured or sold. Three principals of Quadro Corp. were charged with <a href="/wiki/Mail_fraud" class="mw-redirect" title="Mail fraud">mail fraud</a> and conspiracy to commit mail fraud, but were acquitted in a trial held in January 1997.<sup id="cite_ref-AP-Jury_acquits_1-0" class="reference"><a href="#cite_note-AP-Jury_acquits-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Description_and_claims">Description and claims</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Quadro_Tracker&action=edit&section=1" title="Edit section: Description and claims"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The Quadro Tracker was invented by Wade L. Quattlebaum, a former used car salesman from Harleyville, South Carolina. He was said to have devised the Quadro Tracker after he was trying to invent something to find lost golf balls.<sup id="cite_ref-Divine_device_2-0" class="reference"><a href="#cite_note-Divine_device-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> It was sold through his company, the Quadro Corporation, between 1993 and 1996. Around 1,000 Quadro Trackers were sold at prices of between $400 and $8,000 per unit.<sup id="cite_ref-Reason_3-0" class="reference"><a href="#cite_note-Reason-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p>The device consisted of three principal components. A "locator card" purportedly containing a "signature" of the object to be detected was inserted into a plastic "card reader" about the size of a tape cassette that could be attached to the user's belt. This was connected to a hand-held unit about 4 inches (10 cm) long to which a horizontally swivelling metal antenna was attached.<sup id="cite_ref-AP-Drug_Tracking_4-0" class="reference"><a href="#cite_note-AP-Drug_Tracking-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> The antenna would purportedly point to the item being sought when a suitable locator card was inserted into the "card reader".<sup id="cite_ref-HC-Local_feds_5-0" class="reference"><a href="#cite_note-HC-Local_feds-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p><p>According to the manufacturers, the Quadro Tracker could be used to detect items as varied as drugs, weapons, explosives, specific people, golf balls, alcohol, precious metal, dead pets or wild game animals. In the most expensive version of the device, costing $8,000, the user could insert <a href="/wiki/Instant_film" title="Instant film">Polaroid</a> photographs of the item or person to be detected.<sup id="cite_ref-HC-Injunction_granted_6-0" class="reference"><a href="#cite_note-HC-Injunction_granted-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> According to Quadro Corp., "Quadro units have been designed to locate people from a photograph, as well as from a fingerprint. Thus missing prisoners, or escaped prisoners can be located with ease. The machine will identify an individual, no matter what disguise or surgery is undertaken. It has been tested over a distance of 500 miles, and will track, we believe, at any distance."<sup id="cite_ref-Reason_3-1" class="reference"><a href="#cite_note-Reason-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p>The device could supposedly even detect drugs after they had been ingested by a person. A marketing brochure stated: "The tracker will also locate specific drugs in solution. This means that even a person who had been using drugs will have traces in their bodily fluids, blood, etc. Thus the Tracker will indicate people who are using drugs, as well as those who are merely carrying it. Therefore extreme caution should be taken if searching a person, or making accusations, as they may, indeed, not be carrying drugs on them!"<sup id="cite_ref-Reason_3-2" class="reference"><a href="#cite_note-Reason-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p>Quadro Corp. claimed the device worked by oscillating "static electricity produced by the body inhaling and exhaling gases into and out of the lung cavity" to "charge the free-floating neutral electrons of the signature card with the major strength of the signal".<sup id="cite_ref-Reason_3-3" class="reference"><a href="#cite_note-Reason-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-AP-Drug_Tracking_4-1" class="reference"><a href="#cite_note-AP-Drug_Tracking-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> The device's mechanism supposedly contained conductors, inductors and oscillators.<sup id="cite_ref-HC-Injunction_granted_6-1" class="reference"><a href="#cite_note-HC-Injunction_granted-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> It was claimed to be able to detect drugs hidden in air-tight containers, a bomb inside a building from outside or a criminal suspect 15 miles away.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Users">Users</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Quadro_Tracker&action=edit&section=2" title="Edit section: Users"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Numerous US school boards, airports and police departments purchased the Quadro Tracker before it was banned. The <a href="/wiki/Blue_Valley_Unified_School_District" class="mw-redirect" title="Blue Valley Unified School District">Blue Valley Unified School District</a> and <a href="/wiki/Shawnee_Mission_School_District" class="mw-redirect" title="Shawnee Mission School District">Shawnee Mission School District</a> in <a href="/wiki/Kansas" title="Kansas">Kansas</a> bought Quadro Trackers for $955 per unit to detect drugs and ammunition in local schools.<sup id="cite_ref-Drug_detector_8-0" class="reference"><a href="#cite_note-Drug_detector-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Polk_County_Public_Schools" title="Polk County Public Schools">Polk County Public Schools</a> in <a href="/wiki/Florida" title="Florida">Florida</a> bought several Quadro Trackers to share between its schools.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Houston_School_District" title="Houston School District">Houston School District</a> paid $2,000 for two of the devices but never used them. School officials in the <a href="/wiki/McKinney_Independent_School_District" title="McKinney Independent School District">McKinney Independent School District</a> declined to discontinue using the device even after it was banned, saying that they hoped it would be a deterrent: "We're not looking to nail a particular kid. We're looking to send a message."<sup id="cite_ref-Firm_accused_10-0" class="reference"><a href="#cite_note-Firm_accused-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> A similar justification was offered by the principal of <a href="/wiki/Carencro_High_School" title="Carencro High School">Carencro High School</a> in <a href="/wiki/Louisiana" title="Louisiana">Louisiana</a>: "I heard that there had been some trouble with it, but I tell you what. I'm impressed with it. And this is not necessarily going to be used to catch kids with drugs. If my having this thing keeps kids from bringing drugs on campus, it's worth its weight in gold."<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> </p><p>The Texas <a href="/wiki/Department_of_Public_Safety" class="mw-redirect" title="Department of Public Safety">Department of Public Safety</a> used a Quadro Tracker in a failed attempt to find the body of the murdered 7-year-old Carlin Smith.<sup id="cite_ref-Firm_accused_10-1" class="reference"><a href="#cite_note-Firm_accused-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> Police departments in a number of counties, including <a href="/wiki/Jefferson_County,_Florida" title="Jefferson County, Florida">Jefferson County, Florida</a> and <a href="/wiki/Madison_County,_Florida" title="Madison County, Florida">Madison County, Florida</a> also bought the device.<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> The <a href="/wiki/Jefferson_County,_Texas" title="Jefferson County, Texas">Jefferson County, Texas</a> narcotics task force spent $3,250 on a Quadro Tracker. The task force's commander later said: "We played with it in the office and got mixed results. Sometimes we'd find something, sometimes not. Our rate of success was about half. I think it was either blind luck or a <a href="/wiki/Ouija_board" class="mw-redirect" title="Ouija board">ouija board</a> effect. It's not near as consistent as (drug-sniffing) dogs, but there are no vet bills."<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Exposure">Exposure</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Quadro_Tracker&action=edit&section=3" title="Edit section: Exposure"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The Quadro Tracker enjoyed considerable commercial success before FBI agent Ron Kelly, stationed in <a href="/wiki/Beaumont,_Texas" title="Beaumont, Texas">Beaumont, Texas</a>, learned about the device from a contact on the Narcotics Task Force of <a href="/wiki/Jefferson_Parish,_Louisiana" title="Jefferson Parish, Louisiana">Jefferson Parish, Louisiana</a> in 1995. He was suspicious of the claims made for the Quadro Tracker and obtained one of the devices, which he examined using the local courthouse's X-ray machine. It was immediately apparent that the Quadro Tracker was hollow; as Kelly later recalled, "It didn't take a lot of effort on our part to determine it was phony."<sup id="cite_ref-Reason_3-4" class="reference"><a href="#cite_note-Reason-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p>The FBI commissioned the <a href="/wiki/FBI_Laboratory" title="FBI Laboratory">FBI Laboratory</a>'s technicians and <a href="/wiki/Sandia_National_Laboratories" title="Sandia National Laboratories">Sandia National Laboratories</a> to examine the device. They found that the Quadro Tracker contained no electronics whatsoever. It was merely an empty plastic box in which the only metal parts were a couple of wires and the antenna, which were not connected to each other. The antenna was merely a transistor radio aerial.<sup id="cite_ref-AP-Drug_Tracking_4-2" class="reference"><a href="#cite_note-AP-Drug_Tracking-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> Attorneys for Quadro Corp. later contended that the inductors and oscillators supposed to be inside the device "aren't the type usually thought of by electronics experts".<sup id="cite_ref-HC-Injunction_granted_6-2" class="reference"><a href="#cite_note-HC-Injunction_granted-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> The "locator chip" was shown to be equally fake; one example put on display by the FBI contained dead ants that had been frozen and stuck onto paper with epoxy glue.<sup id="cite_ref-AP-Drug_Tracking_4-3" class="reference"><a href="#cite_note-AP-Drug_Tracking-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p><p>Kelly's office brought it to the attention of <a href="/wiki/US_Attorney" class="mw-redirect" title="US Attorney">US Attorney</a> Mike Bradford, who went to US District Judge <a href="/wiki/Thad_Heartfield" title="Thad Heartfield">Thad Heartfield</a> to initiate action against Quadro Corp. In January 1996, Judge Heartfield issued an injunction against Quadro Corp. from "using the United States mails or private commercial interstate carriers, or causing others acting on their behalf to use the United States mails or private interstate carriers, to solicit customers or entities, promote, sell, transfer, or demonstrate the Quadro Tracker… and devices of a similar design marketed under a different name."<sup id="cite_ref-Reason_3-5" class="reference"><a href="#cite_note-Reason-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p>At the same time, the FBI sent a nationwide alert to law enforcement agencies: "A device marketed to law enforcement agencies nationwide, the Quadro Tracker… is a fraud. All agencies should immediately cease using the device if used as a basis for <a href="/wiki/Probable_cause" title="Probable cause">probable cause</a>."<sup id="cite_ref-Drug_detector_8-1" class="reference"><a href="#cite_note-Drug_detector-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p><p>Bradford stated: "The company's claims about the capabilities and operations of the Quadro Tracker are fraudulent and false. There is no scientific basis whatsoever for the operation of the device." He said that Quadro Corp. had also falsely claimed in its promotional materials that the device had been tested or endorsed by the FBI, the US <a href="/wiki/Drug_Enforcement_Administration" title="Drug Enforcement Administration">Drug Enforcement Administration</a> and the <a href="/wiki/National_Institute_of_Justice" title="National Institute of Justice">National Institute of Justice</a>, which had helped to persuade customers that the device was legitimate.<sup id="cite_ref-Firm_accused_10-2" class="reference"><a href="#cite_note-Firm_accused-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> Ron Kelly told the <i><a href="/wiki/Dallas_Morning_News" class="mw-redirect" title="Dallas Morning News">Dallas Morning News</a></i>: "The only thing this accurately detects is your checkbook." </p> <div class="mw-heading mw-heading2"><h2 id="Fraud_investigation_and_trial">Fraud investigation and trial</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Quadro_Tracker&action=edit&section=4" title="Edit section: Fraud investigation and trial"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Following the injunction against Quadro Corp., the FBI pursued a criminal investigation against the company's principals and distributors. Two Houston-based Assistant US Attorneys who had acted as distributors – Guy Womack, who later represented US Army Specialist <a href="/wiki/Charles_Graner" title="Charles Graner">Charles Graner</a> in the 2003-04 <a href="/wiki/Abu_Ghraib_prisoner_abuse" class="mw-redirect" title="Abu Ghraib prisoner abuse">Abu Ghraib prisoner abuse</a> scandal,<sup id="cite_ref-Stretching_14-0" class="reference"><a href="#cite_note-Stretching-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> and John Wagner – were implicated in the affair as licensed distributors for the Quadro Tracker in <a href="/wiki/Alabama" title="Alabama">Alabama</a>, <a href="/wiki/Arkansas" title="Arkansas">Arkansas</a>, <a href="/wiki/New_Mexico" title="New Mexico">New Mexico</a> and <a href="/wiki/Wyoming" title="Wyoming">Wyoming</a>.<sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> A court was told in April 1996 that Womack could be a target of an investigation of possible conflicts of interest, false statements to investigators about his involvement with the Quadro Tracker and possible use of federal office equipment for private business. During the hearing, Womack <a href="/wiki/Pleading_the_Fifth" class="mw-redirect" title="Pleading the Fifth">pleaded the Fifth Amendment</a> on 42 occasions, asserting his right not to incriminate himself.<sup id="cite_ref-16" class="reference"><a href="#cite_note-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> Womack was not charged, but he eventually resigned his post and paid a $5,000 settlement while denying any wrongdoing.<sup id="cite_ref-Stretching_14-1" class="reference"><a href="#cite_note-Stretching-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> </p><p>On August 22, 1996, a federal <a href="/wiki/Grand_jury" title="Grand jury">grand jury</a> returned indictments on mail fraud charges against Quadro Corp.; Wade L. Quattlebaum, the company's president; Raymond L. Fisk, the vice-president; Malcolm S. Roe, the company secretary; and William J. Long, a distributor. The case came to trial in January 1997. On January 29, 1997 the three men were acquitted of all charges by a federal jury.<sup id="cite_ref-AP-Jury_acquits_1-1" class="reference"><a href="#cite_note-AP-Jury_acquits-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Successors">Successors</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Quadro_Tracker&action=edit&section=5" title="Edit section: Successors"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Despite the demise of the Quadro Tracker, a succession of similar devices has appeared in widespread use in a number of countries including <a href="/wiki/Iraq" title="Iraq">Iraq</a>, <a href="/wiki/Mexico" title="Mexico">Mexico</a> and <a href="/wiki/Thailand" title="Thailand">Thailand</a>. A UK-based company, Global Technical, produced a device called the "<a href="/w/index.php?title=MOLE_detector&action=edit&redlink=1" class="new" title="MOLE detector (page does not exist)">MOLE programmable detection system</a>" which Sandia National Laboratories described in a 2001 evaluation as "physically nearly identical" to the Quadro Tracker. Sandia reported that "the visible physical differences between the two products appear to be the product labels and the handle-programming chip – interchangeable on the Quadro Tracker, permanently fixed on the MOLE." It was found to perform no better than random chance.<sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> Global Technical subsequently produced a very similar device, the <a href="/wiki/GT200" title="GT200">GT200</a>, which was sold in large numbers to a number of countries as an explosives and drugs detector. This too was found to be perform no better than random chance, sparking a major controversy in Thailand in 2009–2010 over its effectiveness in connection with its high-profile use in combating the <a href="/wiki/South_Thailand_insurgency" title="South Thailand insurgency">South Thailand insurgency</a> and drug smuggling.<sup id="cite_ref-Nation-Bt800_million_18-0" class="reference"><a href="#cite_note-Nation-Bt800_million-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> A similar device produced by a different British company, the <a href="/wiki/Alpha_6_(device)" title="Alpha 6 (device)">Alpha 6</a>, is also in widespread use in Thailand but is due to undergo <a href="/wiki/Double_blind" class="mw-redirect" title="Double blind">double blind</a> testing to ascertain its effectiveness.<sup id="cite_ref-OCNB_gives_19-0" class="reference"><a href="#cite_note-OCNB_gives-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup><sup class="noprint Inline-Template" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Manual_of_Style/Dates_and_numbers#Chronological_items" title="Wikipedia:Manual of Style/Dates and numbers"><span title="The date of the event predicted near this tag has passed. (November 2022)">needs update</span></a></i>]</sup> </p><p>Another British company, ATSC, produced a very similar device called the <a href="/wiki/ADE_651" title="ADE 651">ADE 651</a> which was sold to Iraq as a bomb detector. After a series of devastating bomb attacks in <a href="/wiki/Baghdad" title="Baghdad">Baghdad</a> and elsewhere which killed hundreds of people, its export to Iraq and Afghanistan was banned by the British government in January 2010 and the company director was arrested on suspicion of fraud.<sup id="cite_ref-Independent-Head_of_20-0" class="reference"><a href="#cite_note-Independent-Head_of-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup> On 23 April 2013, the businessman behind the device, James McCormick, was convicted of three counts of fraud at the Old Bailey in London. </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Quadro_Tracker&action=edit&section=6" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/List_of_topics_characterized_as_pseudoscience" title="List of topics characterized as pseudoscience">List of topics characterized as pseudoscience</a></li> <li><a href="/wiki/ADE_651" title="ADE 651">ADE 651</a></li> <li><a href="/wiki/Alpha_6_(device)" title="Alpha 6 (device)">Alpha 6 (device)</a></li> <li><a href="/wiki/GT200" title="GT200">GT200</a></li> <li><a href="/wiki/Sniffex" title="Sniffex">Sniffex</a></li> <li><a href="/wiki/Dowsing" title="Dowsing">Dowsing</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Quadro_Tracker&action=edit&section=7" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-columns references-column-width reflist-columns-2"> <ol class="references"> <li id="cite_note-AP-Jury_acquits-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-AP-Jury_acquits_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-AP-Jury_acquits_1-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation news cs1">"Jury acquits 3 in Quadro Tracker case". The Associated Press. 1997-01-30.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=Jury+acquits+3+in+Quadro+Tracker+case&rft.date=1997-01-30&rfr_id=info%3Asid%2Fen.wikipedia.org%3AQuadro+Tracker" class="Z3988"></span></span> </li> <li id="cite_note-Divine_device-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-Divine_device_2-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFHarrison1995" class="citation news cs1">Harrison, Cal (1995-04-27). "Divine device or hoax? Police test invention that may detect drugs, bombs". <i>The Herald Rock Hill</i>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=The+Herald+Rock+Hill&rft.atitle=Divine+device+or+hoax%3F+Police+test+invention+that+may+detect+drugs%2C+bombs&rft.date=1995-04-27&rft.aulast=Harrison&rft.aufirst=Cal&rfr_id=info%3Asid%2Fen.wikipedia.org%3AQuadro+Tracker" class="Z3988"></span></span> </li> <li id="cite_note-Reason-3"><span class="mw-cite-backlink">^ <a href="#cite_ref-Reason_3-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Reason_3-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-Reason_3-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-Reason_3-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-Reason_3-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-Reason_3-5"><sup><i><b>f</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFDoherty1996" class="citation news cs1">Doherty, Brian (1996-11-01). <a rel="nofollow" class="external text" href="http://reason.com/archives/1996/11/01/box-of-dreams">"Box of dreams"</a>. <i>Reason</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2010-02-19</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Reason&rft.atitle=Box+of+dreams&rft.date=1996-11-01&rft.aulast=Doherty&rft.aufirst=Brian&rft_id=http%3A%2F%2Freason.com%2Farchives%2F1996%2F11%2F01%2Fbox-of-dreams&rfr_id=info%3Asid%2Fen.wikipedia.org%3AQuadro+Tracker" class="Z3988"></span></span> </li> <li id="cite_note-AP-Drug_Tracking-4"><span class="mw-cite-backlink">^ <a href="#cite_ref-AP-Drug_Tracking_4-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-AP-Drug_Tracking_4-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-AP-Drug_Tracking_4-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-AP-Drug_Tracking_4-3"><sup><i><b>d</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation news cs1">"Drug Tracking Device Branded Phony". The Associated Press. 1996-01-24.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=Drug+Tracking+Device+Branded+Phony&rft.date=1996-01-24&rfr_id=info%3Asid%2Fen.wikipedia.org%3AQuadro+Tracker" class="Z3988"></span></span> </li> <li id="cite_note-HC-Local_feds-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-HC-Local_feds_5-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFTedford1996" class="citation news cs1">Tedford, Deborah (1996-02-09). "Local feds sponsored tracker demonstration". <i>Houston Chronicle</i>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Houston+Chronicle&rft.atitle=Local+feds+sponsored+tracker+demonstration&rft.date=1996-02-09&rft.aulast=Tedford&rft.aufirst=Deborah&rfr_id=info%3Asid%2Fen.wikipedia.org%3AQuadro+Tracker" class="Z3988"></span></span> </li> <li id="cite_note-HC-Injunction_granted-6"><span class="mw-cite-backlink">^ <a href="#cite_ref-HC-Injunction_granted_6-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-HC-Injunction_granted_6-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-HC-Injunction_granted_6-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFStewart1996" class="citation news cs1">Stewart, Richard (1996-02-11). "Injunction granted to halt marketing of search device". <i>Houston Chronicle</i>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Houston+Chronicle&rft.atitle=Injunction+granted+to+halt+marketing+of+search+device&rft.date=1996-02-11&rft.aulast=Stewart&rft.aufirst=Richard&rfr_id=info%3Asid%2Fen.wikipedia.org%3AQuadro+Tracker" class="Z3988"></span></span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFEberting1996" class="citation news cs1">Eberting, Cindy (1996-01-21). "Drug, gun detector a 'fraud,' FBI says Device schools bought apparently little more than paper, plastic". <i>Kansas City Star</i>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Kansas+City+Star&rft.atitle=Drug%2C+gun+detector+a+%27fraud%2C%27+FBI+says+Device+schools+bought+apparently+little+more+than+paper%2C+plastic&rft.date=1996-01-21&rft.aulast=Eberting&rft.aufirst=Cindy&rfr_id=info%3Asid%2Fen.wikipedia.org%3AQuadro+Tracker" class="Z3988"></span></span> </li> <li id="cite_note-Drug_detector-8"><span class="mw-cite-backlink">^ <a href="#cite_ref-Drug_detector_8-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Drug_detector_8-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFEberting1996" class="citation news cs1">Eberting, Cindy (1996-01-26). "Drug detector a fraud, FBI says". <i>Kansas City Star</i>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Kansas+City+Star&rft.atitle=Drug+detector+a+fraud%2C+FBI+says&rft.date=1996-01-26&rft.aulast=Eberting&rft.aufirst=Cindy&rfr_id=info%3Asid%2Fen.wikipedia.org%3AQuadro+Tracker" class="Z3988"></span></span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFFoushee1996" class="citation news cs1">Foushee, Beth (1996-01-23). 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A similar device.</li></ul>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=Quadro_Tracker&oldid=1147361556">https://en.wikipedia.org/w/index.php?title=Quadro_Tracker&oldid=1147361556</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Help:Category" title="Help:Category">Category</a>: <ul><li><a href="/wiki/Category:Fraudulent_detection_devices" title="Category:Fraudulent detection devices">Fraudulent detection devices</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Hidden categories: <ul><li><a href="/wiki/Category:Articles_with_short_description" title="Category:Articles with short description">Articles with short description</a></li><li><a href="/wiki/Category:Short_description_is_different_from_Wikidata" title="Category:Short description is different from Wikidata">Short description is different from Wikidata</a></li><li><a href="/wiki/Category:Wikipedia_articles_in_need_of_updating_from_November_2022" title="Category:Wikipedia articles in need of updating from November 2022">Wikipedia articles in need of updating from November 2022</a></li><li><a href="/wiki/Category:All_Wikipedia_articles_in_need_of_updating" title="Category:All Wikipedia articles in need of updating">All Wikipedia articles in need of updating</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> This page was last edited on 30 March 2023, at 13:02<span class="anonymous-show"> (UTC)</span>.</li> <li id="footer-info-copyright">Text is available under the <a href="/wiki/Wikipedia:Text_of_the_Creative_Commons_Attribution-ShareAlike_4.0_International_License" title="Wikipedia:Text of the Creative Commons Attribution-ShareAlike 4.0 International License">Creative Commons Attribution-ShareAlike 4.0 License</a>; additional terms may apply. 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