Police R.I.D.E. lanes are usually just for the Christmas and New Year’s holidays.
Niagara Regional Police, however, set up R.I.D.E. checkpoints in Niagara Falls and Port Colborne this long weekend with varying results.
Police say about 650 vehicles were stopped around 9:15 p.m. Sunday and not one driver was deemed to be impaired by alcohol.
However, police say they came across a few drivers where an odour of cannabis was present.
Three drivers have been charged for having cannabis readily available and a person under 19 was charged with possession of pot.
Police say eight other tickets were issued to drivers for various traffic offences.
WATCH: Smoke shop smashed: Allegedly-intoxicated driver slowly drives through cannabis store