The Home Office has provided guidance for claimants (available here) for your information.
The Commissioner is Claims authority for anyone who had uninsured losses as a result of a riot.
If you are in this position, and the damage took place in the Devon & Cornwall Police area, please ensure that you have reported the damage to the police, and if you wish to make a claim please email OPCC@dc-pcc.gov.uk with your contact details to Office of the Police and Crime Commissioner and an overview of your situation.