The pamphlet talks about the effects of methamphetamine and cannabis use and urges people to contact police or seek help from mental health and addiction services.
Foster said the operation had been "extremely successful".
"We are completely committed to exposing and apprehending those who choose to deal harmful drugs."
"The physical and social carnage that many of these drugs cause to our communities, especially methamphetamine, is unacceptable and we are committed to lessening that harm and holding those responsible to account."
Foster said if the public wanted to confidentially pass on information relating to the dealing of unlawful drugs they could call police on (06) 831 0700.