Out of curiosity from people who definitively know the answer (as there is often confusion around this I have seen) I'll paraphrase my experience below:
On the weekend I was pulled over for a "sobriety check" a little after midnight as I left the rink from playing hockey, which was fine as I hadn't been drinking at all that day or evening.
When the officer came to my window his response to my question of "What can I do for you?" was "We are performing a sobriety check on you, are you intoxicated/have you been drinking?". My response to this was along the lines of "Did I do something that led you to believe I am intoxicated?" and he got a bit uppity that I questioned him (my opinion with his tone and facial expression) and demanded my Drivers License which he then went back to run.
When he returned he asked again if I'd been drinking and I stated no, he gave me my license and said something along the lines of "For your reference, sobriety checks and license checks are valid legal reasons to pull you over." I said I didn't ask to be argumentative, I just wanted to know and wished him well (although after I gave him my license I muttered something to myself about him being a prick because I didn't like his demeanor but the only things that heard that were me and the voice recorder running in my truck).
So the simple question is, is this true? Can you be pulled over at whim for zero apparent reason simply for the purpose of checking your ID or to "verify your sobriety" (this was not a designated checkstop) while driving even if you have committed no infraction or made any visible driving error that would warrant attention?
For the record, I'm not against stop-checks. Also I drove extra cautiously even though I was zero alcohol/stone sober as one of my buddies is a City cop and text back to our team that guys were getting pulled over so be careful. They had four or five cars out there hiding in the dark (rink is outside the City a short ways) with all lights off who would pull out of a secondary grid and turn on their lights and pull over whoever came along.
Thoughts?