The National Counter Terrorism Security Office, a specialist police unit, is drawing up guidance for hospitality and entertainment sites as part of a drive to prepare for terrorist attacks on crowded public places. Big hotels will also be covered by the new "protective security guidance" to prepare for attacks including car bombs and suicide bombs. Owners and managers of hospitality and entertainment firms will be told to assess their businesses' likely vulnerabilities to attack and prepare contingency plans for staff in the event of an attack. The police-led security office will this month start running counter-terrorism training exercises for businesses in the "night-time economy" Known as ARGUS courses, the exercises will present staff and managers in restaurants, cinemas, theatres and hotels with a simulated terrorist attack.