The National Protective Security Authority handed updated guidance to individuals at high risk which included the recommendation that they set up a ‘safer area’ where they can take shelter

The new guidance was published online just three months before the killing of former Tory MP Ann Widdecombe.

New guidance issued by MI5's National Protective Security Authority (NPSA) suggests they consider creating a secure area to evade a 'potentially violent threat' when it is not…