Can plainclothes policemen have long hair?

Plainclothes policemen of Interpol Brigade can have long hair.

Policemen who are engaged in police camp performances or secret work and need makeup reconnaissance can have long hair.

Plain clothes refer to simple clothes; Also refers to wearing simple clothes; Soldiers, policemen or secret agents who wear civilian clothes to facilitate the execution of tasks. From "Biography of Li Han Ling": "After fainting, Ling plainclothes went out of the camp alone and stopped around:' Don't follow me, my husband invited himself!'" " "