Police are encountering people deliberately trying to cross the alert level boundary out of Auckland

One person tried to cross through Mercer yesterday with an exemption they wrote themselves - they were warned and turned around.

Another couple presented Mercer checkpoint staff with a letter stating they'd completed tests yesterday.

Staff found the location the couple said they were tested at was closed yesterday.

A vehicle drove across paddocks to try to bypass the Pukekawa checkpoint yesterday - they were turned around and given an infringement notice.