Once ten (10) years have elapsed since the completion of all terms and conditions of your sentence and if you have only one offense on record, such as a DUI for example, you will be deemed to have been rehabilitated by the effect of time, and will be considered “deemed rehabilitated”. Please note however, that if you have been convicted of an offense which is deemed as “serious criminality” under Canadian criminal laws, the rehabilitation by the effect of time will not be applicable, no matter how much time will have passed since the completion of the offense at hand.