But Police Association of Tasmania president Pat Allen believes the figures don't stack up and he has received reports from union members that evades are occurring "at least once every day''.

Figures obtained by The Examiner have revealed there were 294 "evade police complaints'' laid against dangerous drivers last financial year - 38 incidents more than the previous financial year.

Out of those complaints, 253 vehicles were subsequently clamped or confiscated by police, however.

Police can clamp or confiscate vehicles after convictions of dangerous driving, including street racing, evading police, incidents of unreasonable noise and speeding in excess of 45 kilometres per hour over the speed limit, among other offences.

Law changes in 2009 now allow police to clamp vehicles for at least 28 days following charges.

Constable Allen said while figures were a positive outcome for police, there was more to the story.

``Those incidents may have been reported as evades when the truth is they're not,'' he said.

``For example it could be a kid on a motorbike who is just riding off into the bush because he hasn't seen police. That's not an evade.''

Constable Allen said unclear police pursuit guidelines had increased ``anarchy on the roads''.

``There is no doubt that evades are up. Our members in the North and the South say they are hearing reports of evades everyday. It's a daily and a nightly event.''

Tasmania Police and the union are currently reviewing the state's police pursuit policy and a result is expected to be finalised later this year in an effort to decrease the number of evade incidents.

 Assistant Commissioner Donna Adams said officers would continue to handle each evade incident with the public in mind and officers would never risk the life of anyone involved for the sake of an arrest.

``Ultimately, police actions are guided by the circumstances of each individual situation, having regard to relevant legislation, policy and training,'' she said.

``If, consistent with policy and training, police decide to discontinue an attempted intercept, investigations are commenced to determine the identity of the motorist who evaded them. Court proceedings can still be implemented and the vehicle clamped or confiscated. If an interception occurs, police can arrest the motorist.''