Patched gang members also gathered at a church near a property which has been under police investigation throughout the day.
The victim, believed to be a Mongrel Mob member, was fatally shot yesterday morning in the suburb of Castlecliff.
Sexual abuse survivor Brodie Joyce was initially quoted up to $4000 in legal fees to get her automatic name suppression lifted.
Around a dozen clubs have had official letters saying the police want to reduce alcohol-related harm.
Sea Shepherd says the IML Plastics factory in Lower Hutt is the main offender after so-called nurdles were found at several popular beaches.