"The CESG approval of the BlackBerry 7.1 OS enables our valued government customers to allow their employees to take advantage of the enhanced features and improved services offered by the latest iteration of the BlackBerry operating system." The BlackBerry Enterprise Solution has delivered benefits at many levels in public sector organisations, including significant cost savings, greater workforce efficiencies and, in turn, an improved service to citizens. For example, by extending core processes and systems to frontline officers, UK police forces using BlackBerry smartphones have been able to reduce the time officers are required to spend at their desks, enabling them to spend more time policing the streets. Furthermore, a number of police forces are using the BlackBerry smartphone apps for Twitter® and Facebook® to change the way they engage with local communities to deliver enhanced frontline policing.