Yes, I work as a law enforcement officer...
First of all, it is unlikely the ticket will be thrown out because your middle name was used as your last name. Your "carbon copy" simply states the charge, most likely - Make U-Turn Unsafely S.29(1) of the Traffic Safety Act but does not contain the critical information that the officer retains for prosecution in court. This would include the "officer's notes" portion of the ticket containing your License plate number, Driver's license number (which can be corresponded to your correct name, picture, address etc for proper identification in court), current weather and road conditions, amount of vehicle/pedestrian traffic, etc. Basically information to support the charge. Also, if the officer realizes his mistake he has 6 months to re-serve you that ticket with your correct information so no discrepancy exists. If you decide to fight the ticket you can contact the Crown Prosecutor's office and request "full disclosure" in which they will provide you with a copy of the "Officer's Notes" for your defense in court. My advice to you is fight the ticket! Many times the crown will reduce the charge simply for showing up. Hope this helps...