As in the UK if you lose something of value you report it, it need not be stolen. In the Uk you are given a crime number to present to your insurance company that you have lost item of value. By doing this the insurance are more likely to pay out. The claim then gets filed, should the person continue to claim that is when fraud flags up.
In Turkey, you report a loss to the police, they are not interested but will give you a number, again this number can be asked by the travel insurance or the house insurance to validate the claim.
I am returning to the UK to report and claim for my 10 carat diamond tiara, but not to worry they will believe me