We're sorry to hear you've fallen victim to theft.
Police reports can be completed in person, online and over the phone. This process should take less than 10 minutes. Look up online for your local police station’s non-emergency number and contact them. Every station is different, some you may be able to do online, some might be over the phone.
Once you've contacted the police, they will ask you questions about what happened and take notes on what you've told them. You may be asked if you want to file an insurance claim, you can just tell them I'm protected by ShipInsure.