The Police will only attend alarms installed in line with the National Police Chiefs' Council's (NPCC) Security Systems Policy. The majority of domestic alarms do not comply with that policy by virtue of the fact they are audible only systems.
The Police will also respond to domestic alarms, when there is some evidence of criminal activity. Should there be an activation and there is evidence of criminal activity or you see something suspicious, please dial 999. It is not advisable to put yourself in danger by making checks yourself.
If it appears to be a false activation, contact the police on their non-emergency number as they may have the owner's contact details on their database.
If it is a persistent problem, contact the local council or see the question in Related Information about noisy neighbours.