A six-month investigation involving multiple units across the Hamilton Police force has seen the arrest of 348 people wanted on outstanding charges.
The police service formed Project KORA in April of this year.
Police say in addition to the nearly 350 arrests, 267 grams of Fentanyl, 5.5 grams of methamphetamine, 16 grams of cocaine adollar valuend illegal oxycodone pills were seized.
Officers also took possession of various prohibited weapons including brass knuckles, knives, and a firearm.
More than $4,800 that police say was proceeds of crime was seized.
Police also laid an additional 104 new charges against suspects.