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Family First is praising Wellington police for keeping a weekly list of the 10 worst family violence offenders and sharing private information on them with anti-violence agencies and Child, Youth and Family.
But the Council of Civil Liberties says police could be breaching the presumption of innocence and perverting the course of justice, Radio New Zealand reports.
Family First national director Bob McCoskrie said the police actions made sense. "At last we are taking proactive action towards at-risk families rather than placing good families under unnecessary suspicion and investigation which the anti-smacking law has done."