Assistant Commissioner Donna Adams said the police service was also keeping a watch on the licensed venues and clubs operated by outlaw motorcycle gangs (OMCG).

"The over-representation of OMCG members and affiliates in a range of criminal and other anti- social activities is of concern to police," she said.

"Police will continue to object to OMCG applications for liquor permits and licences where it's believed they are likely to breach liquor licensing legislation."

A number of bikie venues and clubs operate openly in Launceston.

Satan's Riders run the Handle Bar in Frederick Street while the Outlaws have a clubhouse at Invermay.

The Devil's Henchmen have a club at Mowbray.

Australia's largest bikie gang the Rebels had a clubhouse in Merino Street, Kings Meadows.

"Members and associates of OMCGs have been arrested in Tasmania for crimes ranging from drug trafficking, common assault, breaches of public order and firearms matters with illicit drugs, cash and firearms seizures," the assistant commissioner said.

"Tasmania Police uses all available legislative powers to disrupt the illegal activities of outlaw motorcycle gangs."

The state government has previously introduced laws banning the fortification of premises and this year passed legislation to target criminal profits.