The Omagh Bombing Inquiry is examining whether the single worst atrocity of the Troubles could have been prevented
Twenty-nine people, including a woman expecting twins, were murdered in the Real IRA attack on 15 August 1998
This is the fourth week of hearings
Mr Scott says he came across a police land rover and officers tending to an injured person on a door.
He says he helped try to put the door into the back of the land rover but that it wouldn't fit.
"I really can't remember what happened then, I think we jettisoned the door and put the person into the back of the land rover."
Mr Scott says that when he got to the site of the explosion what happened "is a blank".
He says it only whenever he read his notebook entry from the day "that some things actually came back to me".
He says he does recall seeing his wife walking up the street.
"We passed those glances and then went on our way."
Mr Scott began helping some colleagues who were tending to a "very seriously injured" woman outside a Woolworths shop.
"People were shouting for ambulances"
He tells the inquiry that after that he can't remember what he did but he remembers running down the street and looked over and saw his wife, Nicola, "we just looked at each other with vacant stares and carried on", he says.
Mr Scott says as he got closer to the site of the explosion he was able to see people who were injured.
He says it was "gut wrenching" not being able to figure out who to stop to help.
Mr Scott recalls his colleague running down the road with some first aid boxes and when he returned to him, he was "as white as a ghost" and told Mr Scott "this is really bad".
Mr Scott then got out of the police car and cordoned off Market Street.
He handed out some first aid boxes.
After hearing the explosion, Mr Scott told the inquiry that he was worried about this then girlfriend, now wife Nicola, who was in the town at the time.
A police colleague and neighbour, came to Mr Scott's front door and asked "did you hear that?".
They made their way to the police station and gathered up as many first aid boxes as they could, and made their way to the town.
Image source, Omagh bombing InquiryMr Scott in attendance with his wife Nikki
Mr Scott says he was at home ironing a shirt at his home about half a mile from the town centre.
He says he heard "An obvious thud of an explosion".
He says he recognised the sound from hearing explosions growing up in Castlederg.
Mr Scott joined he RUC at the age of 18, in 1983.
He served in Fermanagh, a short time in Omagh and then transferred to the London Metropolitan police, and served there for two years before coming back to the RUC.
He remained in Omagh until his retirement in 2011.
The inquiry has now resumed.
We are now going to hear from Richard Scott who was a police constable working in the crime team at Omagh Police station at the time of the bomb.
The inquiry has risen for lunch and is expected to return at 13:00 GMT.
Mr Elliot says that at one of the funerals, a bereaved parent told him: "You seemed to be in a different world, you were in a trance. You moved about as if you were on wheels. You could see the weight of the world on your shoulders."
"I didn't realise at the time but, obviously, the sense of duty and trying to help, shone through and that was what I was there for."
He says that day was "inhumane", but adds if he helped the bereaved "that's all I want".
Right through the night, they took a family at a time by mini bus to the army barracks.
Their loved one was brought into a room, and they were allowed one-by-one to identify their relatives.
"This went on all night," Mr Elliot says.
Mr Elliott had been on duty from 4pm on the 15 August, until 9:30am on he 16 August.
"And it was non-stop," he adds.
Mr Elliot says after the bombing: "I saw these people in my sleep, I tried to tell them in a kinder way so it wouldn't hurt them as much."
He says as time went on he got good help and came to understand "there are no better words, it's not going to bring the lost person back".
He says there was a time when he couldn't speak about what happened.
He told the family spokesperson to prepare the rest of their family for the scenario of identifying the body.
"Some hugged me, some beat my chest, some hyperventilated and collapsed on the floor," he says.
"It was a mixture of responses, as you can imagine, from humanity."
Mr Elliot says he was never trained or given any preparation to deal with an incident like this.
"This was a huge, momentous, and horrendous occasion," he says.
He says the words to tell people came to him and he "tried to manage" his words the best that he could.
"I tried to tell them I'm sorry."
"I had to be in the middle of it all," he says.
He started to gather two or three names at a time.
"Two of the victims were known to me unfortunately," he says.
"I had to put my human head on."
To each family Mr Elliott said "give me the spokesperson of the family" who he would then tell everything he knew.
Mr Elliot says that during the night a large number of families were identified at the incident centre who had to be kept there.
He says he walked past rooms with social workers and care workers coming out asking him to speak to families looking for information.
"You can't just run around telling someone that their family member is dead until they are identified and you are sure," he says.
Mr Elliot says when we arrived at the army barracks he saw the bodies of the deceased laid out.
He says it was a "horrendous sight".
"Whatever state they were in they were laid out like that, there were some horrendous injuries."
He says for the people dealing with it "the trauma was enormous".
He says that as the evening drew on the number of people at the leisure centre started to reduce as relatives were located.
He says that communications had ben badly affected including phone lines.
"You can imagine the stampede that there was as people came to the information desks to find out if their loved ones were still alive," he says.
"A massive amount of people could not get hold of their relatives."
A "major frustration" for Mr Elliot was that headquarters would not accept blank pages with names of missing persons on it, they insisted on having the official missing persons forms.
This required staff drawing out many more forms.