Are the locations alarmed? Is the alarm part of your bank's central station monitoring, or monitored by a vendor? Are there exterior and inside-door interior CCTV security surveillance, and are the cameras monitored centrally; if not, are images recorded centrally or at each production office location. The risks are primarily those that are similar to a routine office environment, and the basic concern is to have a receptionist-type greeting area -- to minimize free-flow walking into the work area of strange or uninvited individuals -- or, if more security is desired, a card- or token-access system to control access and provide logging audit-trails of all human traffic. Opening "procedures" would be no different than any office that opens a locked, alarmed location; however, either two people should be present at the opening, or a male should be the first-person opener in the morning.