If you google “Neighbourhood Watch Schemes UK”, it’s another option to consider, looking at the pros and the cons. A criticism is that these schemes are replacing police duties in the community.
We set one up here for our road with each house having a siren to sound for help, we have radios with a direct channel to the police and we use the radios to share intelligence with each other. We take it in turn to go out on a car patrol in twos around our locality. If there is a problem we put a call out for armed response. We leave it to them, as we are not a vigilante group.
That level of security would not happen in the UK or would it?