Some of the men charged with the murder of loyalist paramilitary leader Tommy English are to be questioned about a series of punishment shootings.
The High Court was told detectives plan to arrest at least two of those already being held over the assassination of the UDA man in October 2000.
A prosecuting lawyer also confirmed more people have now come forward to make witness statements against the suspects.
She said: “There are punishment shootings in double figures which involve investigations all over the country.”
The court heard statements have been made to the Historical Enquiries Team — a specialist police unit set up to probe unsolved Troubles-related crimes — about five alleged attacks carried out before 1998.