The PND will bring together five areas custody, crime, intelligence, child abuse and domestic abuse onto one system for police services across the UK.
Chief Constable Peter Neyroud, chief executive of the National Policing Improvement Agency (NPIA) said: "Currently, police forces are unable to search or access intelligence or other information that is held on another force's local systems."
He added: "The Police National Database will enable this by making available nationally copies of locally held information on suspects and criminals, making the public safer by improving the ability of the Police Service to share operational information and helping the police to stay one step ahead of the criminal population."
The first phase of the programme will be rolled out in 2010, and will focus on protecting children and vulnerable adults, in addition to tackling on terrorism and major crime.
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