Mr O'Hagan's brother Fintan said the family was "bitterly disappointed" at the decision not to prosecute.
Chile, when it made the transition to democracy, elected not to prosecute former dictator General Augusto Pinochet.
On April 27th a judicial panel ordered a review of a February decision not to prosecute Mr Ozawa.
But a decision was made by the CPS not to prosecute the case.
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Mr Starmer emphasised that he was not suggesting that the test for whether or not to prosecute should change.
The decision not to prosecute was taken by the Department of Trade's lawyers who have not disclosed their reason.
Lohan's accuser, Tiffany Mitchell, was "disappointed" that the district attorney's office decided not to prosecute, said her attorney, Gloria Allred.
The Express is angry at the decision not to prosecute the 87-year-old former Soviet spy, Melita Norwood, and four others.
In return for his agreement to do so, the Shin Bet agreed not to prosecute him for illegally possessing classified materials.
Director of Public Prosecutions Keir Starmer is to review decisions by the Crown Prosecution Service not to prosecute Jimmy Savile in 2009.
The NI Director of Public Prosecutions has said a decision has been taken not to prosecute in the Martin O'Hagan murder case.
Lawyers for the DPP are arguing the decision not to prosecute was "entirely rational" and was "manifestly not one which is susceptible to judicial review".
The Crown Prosecution Service has reaffirmed its decision not to prosecute police officers over the death of Shiji Lapite, a Nigerian asylum seeker.
McCaskill, a member of the Senate's standing investigative subcommittee, said the Obama administration made the right decision by agreeing not to prosecute intelligence officers.
The judge said that when one or even two complaints had been made, a decision not to prosecute may have been reasonable decision making.
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Hampshire Constabulary said it thoroughly investigated the two sexual assault allegations before passing a file to Crown Prosecution Service (CPS) which decided not to prosecute.
On the other hand, ordering a U.S. attorney not to prosecute him suggests a massive conflict-of-interest, not to mention conveying that he has something to hide.
The disclosure is part of a review of the decision not to prosecute Savile in 2009 after he was investigated by both Sussex and Surrey police.
The group maintained a four-year ceasefire and some members said they were prepared to join the Turkish political process if Turkey would agree not to prosecute them.
Mr Roberts says the reasoning behind the decision not to prosecute people identified by that inquiry was "worrying", and he questioned whether that decision was "properly taken".
On March 18th there was also popular revulsion at the government's decision not to prosecute Sally Aw Sian, the head of the Sing Tao group of newspapers.
The police turned all the evidence over to Anderson County Attorney Frederick Campbell, who ultimately decided not to prosecute the boy that Felman had accused of raping her.
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The president instructs his Justice Department not to prosecute transgressors.
Alison Levitt QC, principal legal adviser to the Director of Public Prosecutions, said she had reviewed a decision not to prosecute Mr Le Vell following allegations made against him in 2011.
As part of his plea, Mr. Hevesi won approval from Mr. Cuomo not to prosecute his two sons, Assemblyman Andrew Hevesi and former state senator Daniel Hevesi, both of whom were under scrutiny.
Home Secretary David Blunkett has already welcomed an experiment by police in Lambeth, in south London, not to prosecute in minor cases of cannabis possession in order to concentrate on tackling Class A drugs.
The legal definition of immunity is a promise not to prosecute for a crime in exchange for information or testimony in a criminal matter granted by the prosecutors, a judge, a grand jury or an investigating legislative committee.
Allen, who has pleaded guilty to bribing state officials, agreed to tape record phone conversations with his friend, the senator, and to testify against him and others in exchange for the government's agreeing not to prosecute the Allen children.
Director of Public Prosecutions Keir Starmer this month blamed a "very real difficulty" in the Lords rules for his decision not to prosecute Labour peer Baroness Uddin, who had designated her flat in Maidstone, rather than her rented house in Wapping, as her main home.
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