P&C (Property & Casualty) is a licence I do not hold.
I do Health & Life.
Each has it's own idiosyncrasies, and laws.
All is meant to keep you from going broke in case of each's disasters.
Maybe increased security measures like maybe a guard, or guard dogs, or the threat of both might help. Video surveillance, unless it's in real time (you have armed people there with radios as it's happening) is of little use (trust me I ran a casino). After you bust a perp you will find out that they have little or no money, or will lie about it to a judge, and you don't get compensated for jack.
I hope that in one way or another you get your money back in the long run.
Good luck
ROX
i like the idea of the threat of death slowly and painfully if i catch them in the act

seriously, i've ordered wireless video camreas that record 120fps straight to a hard drive. i'm buying an external HD to record on so that if something should happen, i can give the HD to the police. if i were to move the video, then it could be beaten in a court, as tampered.
i might not get compensated, but i'd be willing to bet that the person or persons lives near my shop. if they were to get off the hook with the law...........well.........i think you already know where i'm going.
i do appreciate the advice too BTW,,,,,
<<S>>