Constable Stephen Carroll was murdered by dissident republican paramilitaries in County Armagh on 9 March 2009.
General John de Chastelain, has been discussing the possibility of disarmament with republican and loyalist paramilitaries.
His murder led to allegations of collusion between loyalist paramilitaries and the security forces.
However, he ruled out suggestions that former paramilitaries could eventually end up in police uniforms.
He persuaded tens of thousands of right-wing paramilitaries to disband, albeit under a flawed agreement.
Maghaberry is Northern Ireland's high security prison with republican and loyalist paramilitaries among its inmates.
Great pain has been caused by the British army, the RUC and loyalist paramilitaries.
But it is persistently alleged that Panamanian helicopters are aiding Colombian army units and paramilitaries.
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In parts of northern Colombia, voters and candidates were dragooned into doing the paramilitaries' bidding.
But many autodefensa members took to the offensive, and in essence became the paramilitaries.
Embarking on a peace process, the paramilitaries needed an incentive to lay down their arms.
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That is causing many Colombian political forces to change their tactics, including the paramilitaries.
Police said Saturday that loyalist paramilitaries were behind some of the violence in Belfast and elsewhere.
Serb paramilitaries are moving around, though mostly lying low, in the crescent near Pristina.
Between 2004 and 2006 Mr Uribe persuaded the right-wing paramilitaries to give up their weapons.
Paradoxically, the revelations about the paramilitaries' political ties are a result of one of Mr Uribe's successes.
Neither the Colombian government nor the armed forces are pursuing any policy of complicity with right-wing paramilitaries.
When other paramilitaries began declaring ceasefires in 1994, the INLA did not follow suit until four years later.
Even so, the biggest fear is that more of the demobilised paramilitaries will return to arms and crime.
The Supreme Court's decision could encourage that, says Gustavo Duncan, the author of a book on the paramilitaries.
Dr Reid said the level of violence, including that committed by paramilitaries, remained a matter of "serious concern".
Down south in Basra and Nasiriya, the people really would turn on the paramilitaries if they weren't afraid.
The University of Ulster report by Patricia Lundy said soldiers were given favourable treatment compared to former paramilitaries.
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For Mr Uribe's opponents, these troubling stories are proof that the president is in league with the paramilitaries.
Sir John investigated the killing and concluded that there had been collusion between security forces and loyalist paramilitaries.
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Unionists, and the government, reject any attempt to equate weaponry held by the security forces and the paramilitaries.
Some officers accused of links with the paramilitaries have been sacked and, in one case, sentenced to imprisonment.
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Two members of the Uribe Cabinet that were identified as having connections to the paramilitaries were asked to resign.
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The Police Service of Northern Ireland has said the possible involvement of paramilitaries is a "key line of inquiry".
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Amid fierce fighting between the guerrillas and right-wing paramilitaries, thousands of residents have fled across the border to Ecuador.
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