a British television series that has been shown since 1983 about the officers of a police station in an imaginary area of London. It is very realistic in the way it shows the problems faced by the police in British cities. The Bill and the Old Bill are British slang names for the police.
BILL
Meaning of BILL in English
Oxford guide to British and American culture English vocabulary. Руководство по британской и американской культуре, Оксфордский английский словарь. 2005