Officers from the ACT and NSW have launched a cross-border blitz on about 1300 unresolved arrest warrants in the territory, most of which relate to minor offences such as thefts, disqualified and drunk-driving, assaults and failure to appear at court.

Some of the crimes date as far back as 1995.

Police sent about 1000 reminder letters to addresses across Australia in May, which urged recipients to go to a police station to have their matter dealt with.

They are now in the process of tracking down those who have not surrendered themselves.

So far 28 people have been arrested and more than 130 of the outstanding warrants have been resolved.

Superintendent Rod Smith, who is Monaro commander, said police spent a lot of time and resources tracking down offenders who failed to show up at court.

''This is your golden opportunity to come and get this squared up, cleared away in a very dignified and proper manner without it having too much of an impact on you,'' he said.

''Otherwise, we will hunt you down and we will find you and bring you before the court.''

If a person fails to show up after being ordered to appear in court, a magistrate can issue a warrant for their arrest.

ACT Policing Judicial Operations' Superintendent Rob Wilson said many people falsely hoped arrest warrants would go away with time, or if they moved interstate.

''People should know that when there's an arrest warrant in existence that they last for ever," he said. ''Whether it be today, tomorrow, next year or in 10 years' time, the chances of you being arrested are very high.

''It can also hinder your chances of employment in terms of employment checks and also in relation to travelling overseas in relation to visas.''

Superintendent Wilson said there was still time for people who had received letters to turn themselves in to police.

''If people receive one of these letters they should go to the local police station and try to resolve the matter as soon as they can. They don't want these matters hanging over their head for years. Go and resolve the matter and then you can go on with your lives.''

Superintendent Smith said the two police forces combined for the blitz because so many people moved between the ACT and regional NSW, particularly Queanbeyan.

''As we know, criminals don't have boundaries to where they operate and the work of ACT and NSW police pretty much negates those boundary issues,'' he said.

Detective Inspector Shane Box, who is Monaro command crime manager, had a simple message for criminals in southern NSW:

''It doesn't matter what side of the border you're on, we will find you.''