Traffic attendants in Salford are to become the first in the UK to record their work on video.
Attendants have been carrying digital cameras for several years
Some wardens in the area will start to wear head-mounted miniature cameras from later this month.
NCP, which supplies traffic wardens in the city, will use the film to resolve disputes over tickets and to prosecute motorists who assault or abuse staff.
The technology will also help wardens in their new role of issuing fixed penalties for anti-social behaviour.
New legislation enables the attendants to hand out tickets for activities including littering, flyposting, graffiti and allowing dogs to foul the pavement.
NCP says the cameras - already used by police and community support officers - are needed as evidence to prove beyond doubt that the penalties its wardens hand out are justified.
Wardens across the country have for several years captured parking violations on digital still cameras.