The checks run from Monday 3rd to Sunday 16th August, between 10pm and 4am, and may take place anywhere in the territory. Officers are authorised to test drivers for signs of drunkenness, to measure their blood-alcohol level and to screen for the use of drugs. The rulesThe measure draws on the Principality’s road-safety law of November 2025 and the general policing powers of the Minister of State. See more in our free newsletter, follow our Podcasts on Spotify, and check us out on Facebook, Instagram, LinkedIn and Tik Tok. Photo credit: Cassandra Tanti, Monaco Life