Seven former News of the World staff due to appear in court today face one general accusation of conspiracy to access voicemails, that prosecutors say could affect up to 600 victims, along with other charges related to specific people.
Private investigator Glenn Mulcaire is accused of four counts related to particular individuals.
Rebekah Brooks is also due to appear with husband Charlie, 49, and five other people accused of perverting the course of justice.
The charges relate to an alleged attempt to conceal material from police investigating claims of phone hacking and corrupt payments to public officials at The Sun and the News of the World.
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White House budget officials outlined the information during a telephone call with reporters given on condition of anonymity.
A prison officer is to be charged with gross negligence manslaughter and misconduct in public office in relation to the death of an inmate.