The highest court in Massachusetts, the Supreme Judicial Court, holds oral arguments in appellate cases at the start of each month from September to May. WGBH's Morning Edition anchor Joe Mathieu spoke with WGBH News' legal analyst and Northeastern University law professor Daniel Medwed about a pair of legally significant gun possession cases on the docket this week. Massachusetts criminalizes the unlawful possession of a firearm and applies special penalties for particular weapons, including sawed-off shotguns. A pair of gun possession appeals are scheduled for this Friday.