Some salesmen ask to photocopy a shopper's SIN, driver’s license, or to swipe his credit card. All are unnecessary, carry undue risk, violate federal and provincial privacy legislation and are contrary to police identity theft warnings. Identity thefts have been traced to car dealers. The salesman may verify your entitlement to drive and write down your name and address. He is not legally permitted to record license or other numbers or make a photocopy.
Do not present identification or sign anything that will enable the dealer to surreptitiously run a credit check unless you are applying for a loan, and then only after you have hammered out the deal. The better your credit rating the more you will pay, because you can! Multiple credit checks will negatively affect your FICO credit score.
See the attachment.