Christ your country is fucked. I steal a DVD from Walmart and they can sue me for the cost of their security system? Your country is setup to lube the corporate cock.So I'll explain how loss prevention works for like Macy's JCPenney etc big department stores.
They make a profit on loss prevention. They aren't in the game to just prevent loss. Yes alot of inventory is insured. That just recoups inventory loss though. It doesn't pay for you to have dedicated LP.
There are "civil recovery" laws. That's why they arrest people and yes it's a full legal arrest. Once the shoplifter is identified they sue them for civil recovery, which isn't just the price of the inventory. It includes costs for maintaining the camera system, LP agents payroll, insurance, and the value of the items. You steal $10 worth of stuff from Macy's, they sue you for $1000. You can't pay it,.they sell it to a collection agency for 50¢ on the dollar and still get 500$ profit.