The real question is, why release the footage now?
One likely reason is that they are loosing this case in the court of public opinion and this video may have been thought to make him out to look like "the bad guy".
It's so over-the-top though it seems to have had the opposite effect. The intro to the video indicates the footage came from a source within NZ law enforcement; perhaps he had a change of heart and felt the video needed to be seen.
One likely reason is that they are loosing this case in the court of public opinion and this video may have been thought to make him out to look like "the bad guy".