{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,9]],"date-time":"2026-03-09T03:48:08Z","timestamp":1773028088328,"version":"3.50.1"},"reference-count":40,"publisher":"Oxford University Press (OUP)","issue":"1","license":[{"start":{"date-parts":[[2020,12,2]],"date-time":"2020-12-02T00:00:00Z","timestamp":1606867200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2022,2,14]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Sweat deposited via latent fingerprints (LFPs) was previously used to detect cocaine, opioids, cannabis and amphetamine via a point-of-care test (POCT). This screening method combined non-invasive sampling with a rapid result turnaround to produce a qualitative result outside of the laboratory. We report the novel application of a LFP drug screening test in a social care setting. Clients were tested on either an ad hoc or a routine basis using the POCT DOA114 (Intelligent Fingerprinting Ltd) drug screening cartridge. Screening cutoff values were 45, 35 and 95 pg\/fingerprint for benzoylecgonine (BZE), morphine and amphetamine analytes, respectively. Confirmation LFP samples (DOA150, Intelligent Fingerprinting Ltd) and oral fluid (OF) were analyzed using ultra-performance liquid chromatography with tandem mass spectrometry. Thirty-six clients aged 36\u2009\u00b1\u200911 years participated (53% females). Individuals self-reported alcohol consumption (39%) and smoking (60%). Of 131 screening tests collected over 8 weeks, 14% tested positive for cocaine, 2% tested positive for opioids and 1% tested positive for amphetamine. Polydrug use was indicated in 10% of tests. Of 32 LFP confirmation tests, 63% were positive for cocaine and BZE. Opioids were also detected (31%), with the metabolite 6-monoacetylmorphine (6-MAM) being the most common (16%). In OF, cocaine was the dominant analyte (9%) followed by 6-MAM (5%). On comparing positive LFP screening tests with positive OF samples, we found that 39% and 38% were cocaine and opiate positive, respectively. Of the drugs screened for via the LFP POCT, cocaine was the most prevalent analyte in LFP and OF confirmation samples. The study is a step change in the routine drug screening procedures in a social care setting, especially useful for on-site cocaine detection in clients whose drug use was being monitored. Additionally, testing was easily accepted by clients and social care workers.<\/jats:p>","DOI":"10.1093\/jat\/bkaa183","type":"journal-article","created":{"date-parts":[[2020,12,1]],"date-time":"2020-12-01T20:28:23Z","timestamp":1606854503000},"page":"47-54","source":"Crossref","is-referenced-by-count":9,"title":["Evaluation of Latent Fingerprints for Drug Screening in a Social Care Setting"],"prefix":"10.1093","volume":"46","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6994-7815","authenticated-orcid":false,"given":"Caroline","family":"Pollard","sequence":"first","affiliation":[{"name":"Department of Analytical, Environmental & Forensic Sciences, Franklin-Wilkins Building, King\u2019s College London, 150 Stamford Street, London SE1 9NH, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Claudia","family":"Sievers","sequence":"additional","affiliation":[{"name":"Intelligent Fingerprinting, 14-17 Evolution Business Park, Milton Road, Cambridge CB24 9NG, 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