Thieves like to work in the wee hours, away from high traffic areas, in the shadows…so don’t provide those things!
Light up the front of your store..but do the back door area as well….especially if that is the point of egress.
Make sure your garbage bins aren’t blocking lighting or more importantly, camera angles.
Leaving the shop late at night or coming in extra early…ask a co-worker to accompany you, and watch the area as you lock up or unlock to enter the store.
Make sure your security gates, shutters, etc can be seen through, so the police can see if someone is inside who shouldn’t be!
Is your alarm system hard wired to your phone system…any teenager with a few smarts can defeat that…go wireless.
Build your security in layers…don’t rely just on cameras , or bars etc….let the thieves know you’ve been thinking and planning pro-actively.