police box

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun chiefly UK, dated a telephone kiosk where members of the public may telephone the police; a few original boxes still exist in Britain, but they do not operate. Currently, the city of Glasgow (Scotland) has new police boxes, which are not booths but computerised kiosks, that connect the caller to a police CCTV control room operator.
• noun a small community police station, a koban.