Handgun Permit - These qualify as Good and Substantial reasons below but Maryland State Police & The Maryland handgun Review Board has the final say. 1. Owner or Employee of a Business: (a) Submit photocopies of a Trader's License, Business License, or other legal document to prove the existence of the business AND... (b) Provide documentation of business activities that would justify carrying a handgun, such as the transport of financial instruments or other items of val