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Mário Barroso

Mário Barroso

Mário Barroso, Head of R&D and Method Development at AlphaBiolabs, leads AlphaBiolabs’ technical team on developing and improving testing methods. Prior to joining AlphaBiolabs, Mário spent 20 years as a Forensic Toxicologist at the Portuguese National Institute of Forensic Medicine, where he developed and implemented hair testing services. He also sits on the Administration Board of the Society of Hair Testing.

Articles by this author

254022

Hair drug testing: Patterns of use, single events and limitations

Mário Barroso, Head of R&D and Method Development at AlphaBiolabs, examines the forensic science underpinning hair drug testing, its evidential scope and limitations, and why it remains the gold standard for evidencing patterns of drug use in family proceedings

20 July 2026
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