The intent was not to limit it to this nature of offence, issue, or circumstance. The emphasis is really on the fact that it should be considered a historical injustice, and part of that is considering whether or not that criminal activity or that criminalization of an activity is considered to violate the Canadian charter of human rights, as an example.
The context is really looking at any crime that is now considered to be a historically unjust crime, and whether or not we should be providing the option of expungement.