Correct answer
checking exhaled air using breathalysers.
Normally by checking exhaled air with officially authorised breathalysers, under article 22. Confirmatory tests can be performed, and if injury or illness prevents the breath test, medical staff determine the tests needed. Distinguish the usual breath test from analyses required in those cases.
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a urine test.
a blood test.
checking exhaled air using breathalysers.
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