Homes and Property | Home PageYard in new appeal over terror threatHugh Dougherty|Evening Standard Home Affairs Correspondent13 April 2012Scotland Yard today urged the public to back it in the fight against terrorism by reporting even the most trivial suspicion to a special phone hotline.The Met's top anti-terrorism officers called on the public to let them decide what information was valuable by using the phone line and added: "We need your help." The Yard asked for public help in four key areas of counter-terrorism: Landlords and hotel managers should watch out for suspicious tenants or guests renting accommodation on a short-term basis. Motor traders are reminded that cars and lorries had caused devastation in terrorist attacks around the world, and asked if they have suspicions about customers who paid in cash or were secretive about their identity. Bank staff are asked to report people setting up bogus bank accounts which could be used to obtain cash. But the police's own effort against terrorists still faced serious questions after two Greenpeace protesters managed to climb Big Ben unchallenged during an anti-war protest on Saturday.And Yard chiefs have also to explain how they let a London man suspected of being linked to the Madrid bombings disappear. Mohammed al-Garbuzi fled his home on Wednesday. He was being investigated over his links to bomb suspect Jamal Zougam. Terror hotline: 0800 789321.MORE ABOUTWar On Terror