“Security Centres (UK) Ltd” burglar alarm, Newham • This vintage sounder doesn’t exist any more, as I found it in a part of London that’s now been completely torn down to make way for the Olympics. It’s a bit hard to make out, but that’s a thunderbolt piercing the portcullis – another popular alarm motif I shall feature one day. So not only will felons be brutally gated, they’ll be electrocuted. Nice! • Spotted: Pudding Mill Lane, Newham, London, E15, England, 2006 • Politics: In the Labour constituency of West Ham