The unusual toilet-cameras sit on the roadside on trailers hooked to vans to seem less conspicuous.

They have been used on Dutch roads since late last year and have been dubbed “Dixiflits”, from portable toilet (dixi) and traffic camera (flits).

The first trial of the Dixiflits near the city of Almere led to 59 motorists being caught speeding, IamExpatNL reports.