Parliament is correcting the record tonight for all those convicted for historic homosexual acts before the law was changed in 1986.

Legislation in the name of Labour MP, Andrew Little but was introduced last year by National MP, Amy Adams, will pardon those convicted of historic homosexual offences once it passes tonight.

Justice Minister Andrew Little says men were taken out of their homes, lost their jobs or families and were treated abhorrently for what was before 1986 seen as a crime.

"We've got to acknowledge that and the best thing we can do, the least thing we can do, is put the record right."

Little says the stories and evidence Parliament's heard from those set to have their record wiped today are incredibly moving.

He says there are still as many as 1000 men carrying the stigma of convictions from before that period.

"This is about making sure that they live a life free of the shame and embarrassment that goes with that, and an acknowledgement from the rest of us that they are free to choose who they love and to express their love how they wish without carrying a conviction because of it."

Parliament is banding together to pass the law.

It's passing means a process will be introduced to allow people to apply to have their criminal records expunged, as long as both involved in the act were over 16 and consenting.

National MP Amy Adams introduced the legislation as Justice Minister last year, and this Government has since picked it up with priority.

Ms Adams says she's incredibly proud of that.

"Here's an example of parliament actually putting party politics aside, recognising that this is the right thing to do and doing it."