When you report to Ugly Mugs you can choose "Robbery / Theft" as one of the incident types.
What is Robbery / Theft?
We define robbery and theft as the taking of property unlawfully. The property may be taken unlawfully by force or threat of force, or it may be discreetly stolen from you without your immediate knowledge. Robbery and theft are generally recognised as criminal offences.
Robbery / Theft incidents are considered medium level incidents on Ugly Mugs.