John Caldwell made his first public appearance since the shooting at Hillsborough Castle on Wednesday
Eleven people have been arrested in County Tyrone over the attempted murder of senior detective John Caldwell.
He was shot while putting footballs into his car at a sports complex in Omagh on 22 February.
Police said nine men and two women, aged between 21 and 72, were detained under the Terrorism Act on Friday morning.
It followed a significant search and arrest operation in Omagh and Coalisland, they added.
Officers believe the dissident republican group the New IRA may have acted with an organised crime gang to carry out the attack, which left the detective chief inspector with life changing injuries.
The shooting, which happened in front of school children, was widely condemned by political figures across Northern Ireland and beyond.
In a recent update, police said two Ford Fiesta cars they believe were used in the attack had been bought in Ballyclare and Glengormley in County Antrim in the weeks before the attack.
They were later found destroyed.
Detectives have said an estimated 400,000 hours of CCTV footage has been seized for analysis in the hunt for those involved in the shooting.
Image source, Jason McCartan
Police believe this car, found destroyed on the Racolpa Road near Omagh, had been used in the shooting
Who is detective John Caldwell?
He is one of the best-known detectives in the Police Service of Northern Ireland, often fronting press conferences on major inquiries during his 26-year career.
Mr Caldwell investigated the 2011 murder of his colleague Ronan Kerr by dissident republicans.
He was aware his investigations relating to dissident republican attacks – including the killing of Lyra McKee in 2019 – made him a high-profile target.
Image source, Pacemaker
Det Ch Insp John Caldwell has been involved in high profile investigations into dissident republican attacks
In January, he spoke to reporters after the killing of Shane Whitla, a 39-year-old father of four who was shot a number of times in the town of Lurgan in County Armagh.
He was also the initial lead detective investigating the killing of Natalie McNally in Lurgan, and he was involved in investigating the murder of Mark Lovell, 58, who was shot a number of times at close range in his car in Newry in County Down on 1 December.
He had received a number of threats in the past, BBC News NI understands.
Police said Det Ch Insp Caldwell, who was discharged from hospital in April, has given investigators his account of the shooting.
The detective made his first public appearance since the shooting on Wednesday when he attended a garden party at Hillsborough Castle with King Charles and Queen Camilla.
It is understood he had a private meeting with the King ahead of the event.
