In Melbourne, AUS, the Police are authorised to contact any of the private companies that do security like this. I assume the same is true for the fire department, but for a fire like this I know the police would be attending as well.
The stuff I’m familiar with: somebody smashes the front window of a shop or bank. The police arrive, fill out some paperwork, contact the emergency shutters 24 hour number, the shutter people arrive and nail up some metal or plywood across your frontage.
The next day, you arrive, there’s a phone number written large across the shutters, and a large bill in the mail.
Yes, you have to pay: it’s reasonable to pay to have your property secured, and yes it costs a lot: it’s reasonable to charge a lot of money to have somebody on 24 hour call to come out in the middle of the night to secure a property. Nobody likes it, but most people (including the police) like the idea of leaving an unsecured property after a fire or break in even less.