My gf and I were recently involved in an accident (not my liner thank god) and the driver at the time did not have her license on her. To make matters worse, she was an overseas student and was holding an international license!
I was literally waiting in the car for 2 hours while her friend went to find her license. In the meantime, I called the LAC and they said that technically you cannot leave without producing a license, as that can be considered leaving the scene of an accident that attracts a fine and demerit points. Unfortunately in my instance, that ruling goes both ways, so I was stuck playing the waiting game until the friend came back with the at fault driver's license.
In the meantime, I was taking more photos than a paparazzi and took even more photos of the license as it was in both Chinese and English. When it comes to insurance claims, you can never be too safe as insurance will try and find any excuse to low-ball you in not paying up.