Marko Mrmak, Corrections Officer and President of OPSEU Local 252 Marko Mrmak, Corrections Officer and President of OPSEU Local 252 Concerns from guards at Niagara Detention Centre Latest News Police search for driver after an SUV hits a house in Ridgeway Niagara police search for suspect after robbery in Ridgeway Weekend R.I.D.E stops results in four drivers with licence suspensions