The searching of entrants to nightclubs can help promote the licensing objectives of public safety and the prevention of crime and disorder but, as the Secretary of State's guidance to licensing authorities makes clear, such conditions should only be imposed where necessary, taking into account factors such as the location and type of venue. Where the police believe that a premises selling alcohol is associated with serious crime or serious disorder, such as the use of knives or guns, they can apply for a fast track review of the premises licence under new powers which came into force on 1 October 2007. In such cases, licensing authorities must also consider if it is appropriate to impose immediate extra conditions, such as a requirement to search for weapons, on the licence pending that review.