{"id":17318,"date":"2026-03-10T09:07:54","date_gmt":"2026-03-10T08:07:54","guid":{"rendered":"https:\/\/www.securetec.net\/?p=17318"},"modified":"2026-03-10T09:07:54","modified_gmt":"2026-03-10T08:07:54","slug":"cocaine-contamination","status":"publish","type":"post","link":"https:\/\/www.securetec.net\/en\/cocaine-contamination\/","title":{"rendered":"Cocaine contamination"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row][vc_column][vc_column_text css=&#8221;&#8221;]<\/p>\n<h1>From cash to creatures \u2013 cocaine is running wild<\/h1>\n<p><strong>A large number of studies have found traces of drugs \u2013 especially cocaine \u2013 on banknotes. But it\u2019s not only cash that can be contaminated. Bank cards, door handles and photocopiers often retain traces of the substance. Residues of cocaine have even been detected in animals.<\/strong>[\/vc_column_text][tm_spacer size=&#8221;lg:20&#8243;][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/2&#8243;][tm_image align=&#8221;center&#8221; image=&#8221;17296&#8243;][vc_column_text css=&#8221;&#8221;]<span style=\"font-size: 8pt;\">\u00a9: Pixel-Shot \u2013 stock.adobe.com<\/span>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h2>Following the powder trail<\/h2>\n<p>Smooth surfaces like desks and photocopiers are ideal for \u201cdoing a line\u201d. A bank card serves as a precision tool for shaping the powder into even lines so that none goes to waste. Finally, a seemingly harmless banknote can be rolled up into a tube through which the \u201cline\u201d is snorted into the nose. In this way, drug residues that are invisible to the naked eye are deposited on everyday surfaces and objects.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][tm_spacer size=&#8221;lg:20&#8243;][vc_message css=&#8221;&#8221;]<\/p>\n<h2>Take care \u2013 test correctly with DrugWipe!<\/h2>\n<p>Traces of cocaine are to be found almost everywhere \u2013 especially on surfaces. DrugWipe reacts to even the tiniest of traces. It is therefore essential to use the correct test procedure to ensure a valid result. The pads on the sample collector must only come into contact with saliva from the test subject before being placed in the test cassette. Under no circumstances is the sample collector to be set down on any surface during the test procedure.[\/vc_message][tm_spacer size=&#8221;lg:20&#8243;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h2>Clean bank notes are rare<\/h2>\n<p>Cocaine-contaminated banknotes are frequently reported on in the media. Shortly after the introduction of the euro in early 2002, only a small number of banknotes in Germany had such residues. However, just seven months later, nine out of ten did. Smaller notes were found to be more contaminated. One study in Ireland in 2007 even found traces of cocaine on every single banknote tested.<sup>1, 2<\/sup><\/p>\n<h3>Polymer versus paper notes<\/h3>\n<p>The material from which notes are made plays a role in the transfer of residues, with polymer banknotes much more likely to transfer cocaine particles than paper notes. Paper notes consist mainly of cotton, making them more porous so that they act like a sponge. As a result, cocaine residues adhere better to them and are less likely to be transferred to other surfaces. Euro notes are still made from cotton. In contrast, some countries \u2013 such as Australia \u2013 have adopted polymer banknotes in recent years. <sup>3, 4<\/sup>[\/vc_column_text][tm_spacer size=&#8221;lg:20&#8243;][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/2&#8243;][tm_image align=&#8221;center&#8221; image=&#8221;17305&#8243;][vc_column_text css=&#8221;&#8221;]<span style=\"font-size: 8pt;\">\u00a9: Jannik \u2013 stock.adobe.com<\/span>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h2>Trace levels compared<\/h2>\n<p>Levels of cocaine contamination on banknotes vary widely across the globe. The highest concentrations have been found in the United States, with over 1300 \u03bcg per note detected in some studies. On average, however, the values detected are in the single to double-digit microgram range. Within Europe, Spain is clearly leading the pack \u2013 with up to 889 \u03bcg of cocaine residues per note, Spanish banknotes are the most contaminated. On average, they carry around five times more traces of cocaine than German euro notes \u2013 which is no coincidence, given that Spain is a key point entry point for the drug into Europe.<sup>5<\/sup>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][tm_spacer size=&#8221;lg:20&#8243;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h2>Animals on drugs<\/h2>\n<p>In 2024, Brazilian researchers discovered higher concentrations of cocaine and its main metabolite benzoylecgonine in the tissues of sharpnose sharks than had previously been found in other marine animals.<sup>6<\/sup> The European eel is also suff ering from the eff ects of exposure to cocaine in river water. Numerous studies from around the world have detected residues of drugs and their metabolites in samples taken from bodies of water. This can be explained by the widespread use of drugs and by variations in the eff ectiveness of waste water treatment.<sup>7<\/sup>[\/vc_column_text][tm_spacer size=&#8221;lg:20&#8243;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h2>Cocaine is in the air<\/h2>\n<p>Drugs and psychoactive substances are becoming a focal point for air analysis. Cocaine, among other substances, has been detected in air measurements taken in almost all large cities around the world. A nationwide study in Italy also found that cocaine was the most prevalent drug in the air in both urban and rural areas, with Milan top of the list. However, the concentrations detected aren\u2019t sufficient to make people \u201chigh\u201d or unfit to drive.<sup>8<\/sup>[\/vc_column_text][tm_spacer size=&#8221;lg:20&#8243;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h2>A rising trend<\/h2>\n<p>According to the 2025 report by the European Union Drugs Agency (EUDA), the ready availability of cocaine is steadily increasing in Europe. As a result, rising concentrations of residues are to be expected.<sup>9<\/sup>[\/vc_column_text][tm_spacer size=&#8221;lg:20&#8243;][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/4&#8243;][\/vc_column][vc_column width=&#8221;1\/2&#8243;][tm_image align=&#8221;center&#8221; image=&#8221;17157&#8243;][\/vc_column][vc_column width=&#8221;1\/4&#8243;][\/vc_column][\/vc_row][vc_row][vc_column][tm_spacer size=&#8221;lg:20&#8243;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h3 style=\"text-align: center;\">DrugWipe S 605 G \u2013 6 drug groups in 5 minutes<br \/>\nJust ask \u2013 we\u2019re always happy to help.<\/h3>\n<p>[\/vc_column_text][tm_spacer size=&#8221;lg:20&#8243;][vc_column_text css=&#8221;&#8221;]<\/p>\n<p style=\"text-align: left;\"><strong><span style=\"font-size: 8pt;\">References:<\/span><\/strong><br \/>\n<span style=\"font-size: 8pt;\">1: No author (2003), Fast alle Euro-Noten tragen Kokainspuren (\u201cAlmost all euro notes show traces of cocaine\u201d), spiegel.de (20\/01\/2026) 2: Dublin City University (2007), 100-percent Contamination Of Euro<\/span><span style=\"font-size: 8pt;\"> Notes With Cocaine, Science Daily, 29.1.26; 3: Amaral, M.A. et al. (2022), Trace evidence dynamics of cocaine on banknotes [\u2026], Science and Justice, 62; 4: Altmann, K. (2024), Von der Baumwolle zur Banknote:<\/span><span style=\"font-size: 8pt;\"> Der Weg der Euro-Scheine (\u201cFrom cotton to banknote: the journey of a euro note\u201d), bankenverband.de, 3\/2\/26; 5: Plataforma SINC. (2008), Spanish Bank Notes Contain Highest Traces Of Cocaine [\u2026],<\/span><span style=\"font-size: 8pt;\"> ScienceDaily, 20\/01\/26; 6: Prinz, U. (2024), Haie auf Koks (\u201cSharks on coke\u201d), ri\u001f reporter.de, 21\/1\/26; 7: Capaldo, A. et al. (2018), Eff ects of environmental cocaine concentrations [&#8230;], Science of the Total<\/span><span style=\"font-size: 8pt;\"> Environment, 640-641; 8: Zambas-Adams, P. et al. (2022), Analytical Approaches and Trends in the Determination of Psychoactive Drugs in Air, Sci, 4; 9: No author (2025), Cocaine \u2013 the current situation in<\/span><span style=\"font-size: 8pt;\"> Europe, EUDA report<\/span><\/p>\n<p>[\/vc_column_text][tm_spacer size=&#8221;lg:20&#8243;][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;&#8221;]<div class='w3eden'><!-- WPDM Link Template: Default Template -->\n\n<div class=\"link-template-default card mb-2\">\n    <div class=\"card-body\">\n        <div class=\"media\">\n            <div class=\"mr-3 img-48\"><img decoding=\"async\" class=\"wpdm_icon\" alt=\"Icon\" src=\"https:\/\/www.securetec.net\/app\/plugins\/download-manager\/assets\/file-type-icons\/pdf.svg\" \/><\/div>\n            <div class=\"media-body\">\n                <h3 class=\"package-title\"><a href='https:\/\/www.securetec.net\/en\/download\/newsletter-cocaine-contamination\/'>NEWSLETTER: Cocaine contamination<\/a><\/h3>\n                <div class=\"text-muted text-small\"><i class=\"fas fa-copy\"><\/i> 1 file(s) <i class=\"fas fa-hdd ml-3\"><\/i> 0.00 KB<\/div>\n            <\/div>\n            <div class=\"ml-3\">\n                <a class='wpdm-download-link download-on-click btn btn-primary ' target=_blank rel='nofollow' href='#' data-downloadurl=\"https:\/\/www.securetec.net\/en\/download\/newsletter-cocaine-contamination\/?wpdmdl=17320&refresh=69e52980d438b1776626048\">Download<\/a>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<\/div>[\/vc_column_text][tm_spacer size=&#8221;lg:30&#8243;][\/vc_column][\/vc_row][vc_row lg_spacing=&#8221;border_top:1;border_right:1;border_bottom:1;border_left:1&#8243;][vc_column][tm_spacer size=&#8221;lg:30&#8243;][vc_column_text]<\/p>\n<h2 style=\"text-align: center;\">Newsletter<\/h2>\n<p>[\/vc_column_text][tm_spacer size=&#8221;lg:30&#8243;][vc_row_inner][vc_column_inner][vc_column_text]<\/p>\n<h4>Subscription<\/h4>\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f15203-o1\" lang=\"de-DE\" dir=\"ltr\" data-wpcf7-id=\"15203\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/en\/wp-json\/wp\/v2\/posts\/17318#wpcf7-f15203-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"Contact form\" novalidate=\"novalidate\" data-status=\"init\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"15203\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"de_DE\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f15203-o1\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/>\n<\/fieldset>\n<p><label> Your name<br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"your-name\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" autocomplete=\"name\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"your-name\" \/><\/span> <\/label>\n<\/p>\n<p><label> Your e-mail address<br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"your-email\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" autocomplete=\"email\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"email\" name=\"your-email\" \/><\/span> <\/label>\n<\/p>\n<p>Use of data:<br \/>\nThe data we collect will only be used to dispatch the newsletter and keep a record of your consent. 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But it\u2019s not only cash that can be contaminated. Bank cards, door handles and photocopiers often retain traces of the substance. Residues of cocaine have even been detected in animals.","protected":false},"author":95,"featured_media":17292,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[85,86],"tags":[],"class_list":["post-17318","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-home-en","category-news-en"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Cocaine contamination - Securetec Detektions-Systeme AG<\/title>\n<meta name=\"description\" content=\"A large number of studies have found traces of drugs \u2013 especially cocaine \u2013 on banknotes. But it\u2019s not only cash that can be contaminated. 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