Laws which manage returning New Zealanders with convictions overseas may contravene the prohibition against retroactive penalties and double jeopardy in the Bill of Rights, says the New Zealand Law Society.
The Law Society presented its submission today to the Justice Select Committee which is reviewing the Returning Offenders (Management and Information) Act 2015.
The Act allows special conditions to be imposed on a returning offender which may have an element of double jeopardy or additional punishment, the society claims.
In a statement this afternoon, the Law Society said it was concerned about the appropriateness of the regime, and noted that the public did not have an opportunity to file submissions before it came into law.
"In 2015 the Act was introduced and passed under urgency in only two days, and there was no opportunity at the time for public consultation," Law Society spokesman Jonathan Orpin-Dowell said.