 In 2003, Strathclyde Police replaced the white shirts with black wicking T-shirts for the majority of officers on duty, and this dress has now been adopted by all forces except those in London, Merseyside and Northern Ireland.Some forces use combat trousers (trousers are of a cargo pocket style with two thigh pockets and two conventional side and rear pockets) and boots.Today, female officers almost never wear a skirt in working dress, and sometimes wear trousers in formal dress as well.