I don’t think so. It’s hard to find anything definite, as the police don’t like publicising where the weapons are stored, for obvious reasons, but a look at the stats they do publish indicates it wouldn’t make sense.
There are 48 forces across England and Wales- 45 covering various areas, and 3 dedicated for specific purposes, some of whom are routinely armed. There are only around 7000 police authorised to use a firearm; around 1/3 of them are in London. It’s also important to note that ‘authorised to use a firearm’ doesn’t, in most areas, mean they get to decide to take the gun out, it means they can be issued one; outside of roles with blanket authority, which do seem to be spreading, a firearm is individually issued for a specific purpose.
In 2017, the most recent year I can find data for, only 4 of the 45 regular forces had more than 200 armed police, all major cities. The major cities all have dedicated armed squads- who don’t do routine duties while armed, and use specific vehicles marked so helicopters can distinguish them from the regular forces, as well as wearing extra body armour.
They’re either called in for a specific reason -which can be routine patrol in some higher risk areas- or on call, in case of a major incident. Only the major cities bother publishing much info about how this works, and there are some differences between regional forces, but the basic principle, as per stated guidelines, is of having specific highly trained teams with serious gear on call, rather than the odd handgun dotted around, because Bob (when he’s in), has a permit.
Besides, the sheer lack of numbers indicate that they’re not going to keep stuff stored all over; one police force had only 31 police licenced to carry in a county with a population of over 500,000. I’d be surprised if they weren’t all based at one site- it’d minimise the copious paperwork involved, for a start.
It really does need to be emphasised how infrequent police firearm use can be in much of the country; the county of Cumbria, with a population of over half a million, had armed police activity only around 10 times in 2019. In the same year, shots were fired at a person only 13 times in the entirety of England and Wales. And that was the highest number of the decade.
cite