The council gets several complaints each year about intruder alarms sounding and causing a problem to neighbours. The vast majority of these alarms are sounding needlessly and we have to get them switched off, sometimes by breaking into the property. The cost of this is passed on to the owner or occupier of the house - potentially the bill can turn into hundreds of pounds.
Any alarm should have a 20 minute cut out device fitted to it, to stop it from ringing for long periods. Even if it does have a cut out it may be triggered over and over again by a fault. Even the best maintained alarm systems can develop faults so you can help us and perhaps save yourself a considerable sum of money, by having someone else hold a key for you and letting your neighbours know who this is. The Council or the Police no longer keep key holder information.