Why do detectives wear uniforms?

It's basically tradition and is seen as the Detective uniform. Police staff, likewise, wear business attire, expect for those in custody, CSI, property, PCSOs, and staff who are front line in the enquiry office of the station, who all have their own different uniforms. read more

Most detectives seldom wear uniforms, although they may be required to maintain a uniform at all times. Uniforms are required for ceremonial occasions, such as funerals and awards ceremonies. read more

Gang detectives, vice detectives, and other specialized assignment detectives don't usually wear suits. They wear what is appropriate for what they are doing. That might be tee shirt and jeans with a raid jacket or vest, or for undercover assignments, they wear what is normal for their target environment. read more