One of the guns used in the killing of two British soldiers at Massereene Barracks in March 2009 had previously been used in a gun attack in Derry seven years ago.
The detail emerged at the trial of two dissident republican who are charged with murdering the two soldiers killed in the attack at the Antrim barracks.
The court was told that two guns were used in the attack and that one of the weapons, an AK assault rifle, was used in a gun attack on Strand Road PSNI station in 2004.
The attack happened on September 8th 2004 when a lone gunman fired up to 30 shots at the Strand Road PSNI station from Queen Street. The incident took pace at 9.45am as students were arriving at the nearby North West Regional College.
It is believed that construction workers working on an extension at the Bayview Terrace end of the PSNI station were the intended target of the attack.
At the time the PSNI said that the gunman’s face was covered with a tartan scarf and that he may have been wearing a tam o’shanter style Scottish hat. A car used by the gunman was later found burned out at Quarry Street. The Real IRA later said it carried out the shooting.