A volunteer at the Central North Correctional Centre may get an up-close look at the inside of a cell for smuggling drugs into the facility.
Staff members at the prison, commonly referred to as the superjail, seized almost 50 grams of marijuana from two inmates on March 23.
Southern Georgian Bay OPP detectives subsequently learned a 67-year-old prison volunteer had supplied the drugs, worth approximately $4,980.
The volunteer and the two inmates, ages 34 and 42, have all been charged with possession of marijuana, trafficking, and possession for the purpose of trafficking.
All three are scheduled to appear in Midland court.