Gang Conflict Warrant: Police using new powers to target gangs in Hawke's Bay - invoking them eight times in one night / Grooming gang investigator 'fed up' of political rows / Gang patch ban: Police make 'handful' of arrests and seizures on first day of anti-gang law enforcement / Cop culture: Gang members reveal humiliating police tactics in new report / Gangland book extract: The police, the Comanchero gang and Operation Nova / Gang crackdown: Police Association concerned by lack of detail in National Gang Unit plans / Gascon pressed at Los Angeles County DA debate over lax policies on gang-related crime enhancements / Grooming gangs: Police 'do not accurately understand issue'