Glossary term

Field impairment assessment: A field impairment assessment is the set of roadside tests police may use if they think someone is impaired by drugs.

UsefulLegal / safetySource quality: HighLast updated: 29 June 2026

Why this term matters

This helps patients understand what can happen in a roadside stop.

UK medical cannabis context

GOV.UK says police can stop drivers and ask them to do a field impairment assessment.

What not to assume

Passing or failing is not the only issue; blood or urine testing may follow.

Careful wording: Avoid giving tips on “how to pass”.

Related glossary terms

Related MCPH pages

Sources and review notes

This entry is educational vocabulary, not medical advice. Suitability, prescribing, product choice and monitoring belong with a qualified clinician or pharmacist.