Architects in the UK must take counterterrorism measures into account when designing buildings, according to leading experts.
The National Counter Terrorism Security Office (NaCTSO) head and detective chief inspector Chris Phillips said that the police body was working closely with businesses when they were planning new builds.
"[The government] is not keen on having legal regulation put in place, but we need more advice given to the central business district. We need businesses to understand it is imperative," Phillips said when speaking at Arena International's Counter Terrorism and Security conference in London.
Unsupervised underground car parks and non-shatterproof double glazing are some of the measures that NaCTSO has advised against.
NaCTSO has a number of counterterrorist security advisors that work with local business on anti-terror building measures and help to plan emergency procedures.