Although inflexible, Massachusetts is arguably one of the most lenient states in terms of authorizing queries for record-expungement or ‘sealing’. You may request record expungement after five years for misdemeanor offenses, ten years for some felony offenses, and a small handful of sexual offenses have the potential to be pardoned through the application of expungement in some cases—nonviolent crimes only, and none involving minors. Crimes involving sales of weapons or assault of public officials are not typically eligible for expungement. You may be eligible for expungement of some criminal-records and offenses if you are later found not guilty or the crime in question has become decriminalized.