The Dorset Police operate regular patrols around the Harbour utilizing the police launch "ALARM" and a rigid inflatable "Sea Rider". They are on constant watch for misdemeanors and problems and may well ask you to stop for communication or information. Be prepared to stop if asked to do so.

The Harbour Master operates a number of patrol craft within the Harbour limits during periods of busy recreational activity. Their main role is byelaw enforcement and to educate users who do not have knowledge of the regulations, but the Harbour Master will prosecute offenders on occasions of dangerous or irresponsible behaviour. The maximum fine is £1,000. (Pilot boats are fitted with CCTV equipment).