Hey all, Sorry if this has been covered, but I searched and didn't find anything. Just thought I'd share my recent experience. Last Friday I was driving myself and my wife home from a nice dinner date in Markham/Richmond Hill north of T-DOT, and I had two (what looked like) ETF officers "tail" me home and park on my driveway. I had been driving southbound and reached a red light stopped in the right lane. There was a black and blacked out Suburban sitting next to me at the red light. I proceeded to accelerate fairly briskly to the speed limit, checked my mirrors, signalled and changed lanes into the left lane. There's a mall on the right side of this street and people are notorious for slamming on their brakes to enter the driveway and I try to avoid it as a safety precaution. Once I passed the driveway I signalled and moved back to the right lane, then into the right turn lane and into my side street. I was shocked by that same big black Suburban tailing me not even a car length behind, with just bright headlights filling my rearview. There were no "cherries" or red/blue lights flashing, noises or sirens that I could see. Once I parked in my driveway they also entered it and then I became concerned/scared. Two small red lights flashed once from the hood, when I was taking off my seatbelt, as I was now very wary. The black SUV/Suburban was unmarked. Out two guys in bullet proof vests jumped out, did NOT id themselves and asked me for licence and reg. I gave it to them after seeing what looked like a computer in the SUV, thinking "they should be police, right?" I did not (mistakenly) think of asking their badges to appear. It was dark so maybe they were in plain sight but I couldn't see them. They proceeded to go back into the SUV, check my papers/licence and start screaming at me and accusing me of stunt driving. I know what that law explains and I was 100% sure that I had not done anything like that. I asked them what that was, playing dumb. Ask my wife, I'm good at that :) I may have hit 80km/hr in the short span from that red light to my street, but even my stock WRX can't hit that speed in the total 100m distance from the light to the side street unless I drop the clutch at 5000 RPM and floor it. They proceeded to berate me and tell me that they can take my car and licence for seven days, and that I can't do 100 km/hr on that street, which was extremely unlikely. I admitted nothing, but when I offered the licence and car to them peacefully, they became angry, saying I cut them off, which I apologized for, saying "if I cut you off, I'm sorry". I hadn't, but I didn't want to "push my luck". They also shouted that I almost crushed another car, which was untrue. When I asked them which car, they just shouted that I am arguing with them and not showing remorse. Fairly confusing to say the least. They then said they would give me a caution and put it on my previously clean driving record, and that they were going to give me a break because of that. I thanked them and wished them a good night. I laughed about it 5 minutes later, but it still concerned me a bit. I'm usually not a big speeder, drive slowly in residential/school areas, turn on my lights in inclement weather so my taillights can be seen, and I've even reported suspicious behavior on the road to the police (who then called me as a witness for two guys that stole a car and caused two accidents.) I hadn't been stopped by police in over 8 years, which was the last time I was caught speeding (15 over). I guess my question is: 1) Can they put a "note" on my record saying I was stopped, even without charging me? 2) If so can this be reviewed by another police officer, or my insurance company later? 3) If they are in an unmarked vehicle and didn't identify themselves, would this be considered proper protocol, especially considering they parked on private property (my driveway). Anyway, any advice is appreciated and just thought I'd share. Sorry if it was a bit "wordy". Thanks!