tenth arrest has been made by police investigating the shooting of senior detective John Caldwell in Northern Ireland last month.
The 45-year-aged man was arrested in the Belfast area under the Terrorism Act on Tuesday evening.
He was taken to Musgrave serious crime suite in the city for questioning.
Detective Chief Inspector Caldwell was shot a number of times at a sports complex in Omagh, Co Tyrone, after coaching a youth football team.
He remains in a critical but stable condition in hospital.
Police acquire launched an attempted murder investigation.
They acquire described the dissident republican group the novel IRA as their main line of inquiry.
Eight men acquire been arrested in connection with the attempted murder. All eight were released following questioning.
Meanwhile, a 25-year-aged man was arrested in connection with the claim of responsibility by the novel IRA around the shooting. He was also released after questioning.