Expungement: convictions are expunged by operation of law once the period has elapsed.
Convictions are not stored permanently in the criminal record. Once the expungement period has elapsed, expungement takes effect by operation of law, so no separate application is required. When the period begins and how long it lasts is governed by the Expungement Act. From a legal perspective, the precise calculation is important, because both the start and the duration depend on the specific sentence.
Have it calculated in the individual case when the expungement period begins and when it ends. For several convictions, special rules apply that can influence the period.