Yes, airlines in the UK can conduct drug and alcohol testing on pilots and cabin crew. The Civil Aviation Safety Authority (CASA) in the UK allows for two types of alcohol and drug testing under the Civil Aviation Safety Regulations 1998 (CASR): random testing and post-incident testing [5].

Only flight crew and cabin crew members with an assigned operational duty may be subject to an alcohol test [6]. Before being employed, prospective pilots and crew members are required to undergo drug and alcohol testing as part of the recruitment process [7].

The Civil Aviation Authority also recommends airlines and air traffic controllers “review and monitor the efficacy of the policy and related procedures” regularly to ensure their ongoing efficacy [8].