Mohammed Ahmed Mohamed's audacious escape from terror restrictions by removing his electronic tag and absconding from a west London mosque in a burka has brought the Coalition's terror laws into the spotlight. Should we be worried that under the relaxed legislation six other suspected terrorists will have restrictions on them lifted in January? Phil Kemp investigates Terrorism Prevention and Investigation Measures - or TPIMs - and asks if the civil liberties of suspects have been put ahead of public safety.