Policeman, Dark Bluish Gray Vest with Radio, Badge, and 'POLICE' on Back over Medium Blue Shirt, Dark Blue Cap, Sunglasses

Comes in 3 sets, made of 4 parts. The lowest-priced set it comes in is 60127 Prison Island Starter Set (RRP £8.99).

Check the minifigures carefully when buying a used set: they're part of its grade.