Months after Massachusetts voters voted to broadly legalize marijuana for recreational use for adults over the age of 21, the New England Cannabis Convention is returning to Boston.

As California seeks to regulate its medical marijuana economy, as well as set rules for personal cultivation, a March 1 deadline is making scores of cities and counties paranoid about how to govern pot.

As California seeks to regulate its medical marijuana economy, as well as set rules for personal cultivation, a March 1 deadline is making scores of cities and counties paranoid about how to govern pot.