Amends the Criminal Identification Act. Provides that, in anticipation of the successful completion of a diversion program, a petitioner may file a petition for expungement at least 61 days before the anticipated dismissal of the case. Provides that, if a petition is filed, and upon the successful completion of the diversion program and dismissal of the case, the court shall review the petition and shall grant expungement if the petitioner meets all requirements. Amends the Drug Court Treatment Act, the Veterans and Servicemembers Court Treatment Act, and the Mental Health Court Treatment Act to make conforming changes.