Masterton police have called in Child, Youth and Family after discovering a substantial cannabis-growing venture in a house where children were living.
Police discovered 12 almost mature cannabis plants growing in a locked room fitted with special lighting and temperature monitors inside a central Masterton house that was raided on Friday morning.
Detective Senior Sergeant Barry Bysouth said what was disturbing was the growing room was adjacent to what appeared to be the family lounge.
"This is what we are confronted with when people say cannabis doesn't do any harm.
"We obviously have concerns around the unlawful cultivation of cannabis in any circumstances but, in this particular situation, this was a family home with a number of children and our over-riding concern is that children were exposed to this unlawful drug on a daily basis, as the room is right next to where they were watching TV."