Should you discover that you have been burgled: call the police immediately. Beyond this your situation will determine your course of action. If you make the discovery before entering the building, stop and call the police from outside as you could disturb vital evidence inside that could help the authorities. If you witnessed the burglars and do not have a CCTV system, make a detailed description of their appearance. Once the police have arrived and you are given access to the property, begin to make a list of all the items that were stolen and their value. This will help the police in their search to retrieve your goods and will also be necessary if you make an insurance claim.