THE mother of a newborn baby dialled 999 after waking to find the six-week-old boy in bed next to her not breathing, an inquest heard.

Natalie Whitehead phoned for an ambulance and later called Harry Chester's dad Phil at work saying: “I think I’ve killed him. I’ve rolled on him", the hearing at Accrington Town Hall was told.

Evidence from senior paramedic Victoria Murray confirmed that an ambulance had been called to Stoneycroft in Worsthorne at 11.20am on June 11, 2018.

On arrival she and her colleagues including senior paramedic Collette Kallee, found Miss Whitehead’s father and baby Harry’s grandfather Philip Whitehead sitting at the bottom of the stairs who pointed them in the direction of the parents’ bedroom.

Phil Chester had left for work at 5am and later reported that Harry had been breathing when he had left.

The ambulance crew found Harry on his parents' bed, where he had been sleeping with his mother, with blood around his mouth and left nostril with what appeared to be discolouration caused by bruising on his face.

They attempted resuscitation, however rigor mortis had already set in.

Ms Murray said: “Collette and myself looked at each other and we knew that the baby was dead.

“Mum kept saying, have I laid on him?”

The paramedics took Harry to the ambulance where they continued to perform CPR and applied a defibrillator.

In documentary evidence, Ms Kallee said: “Even though I was doing all this to Harry I knew it would be futile and that my efforts would not be successful.”

The ambulance crew had no option but to declare resuscitation terminated at 11.31am.

Evidence gathered from a post-mortem examination carried out by Dr Melanie Newbold of Royal Manchester Children’s Hospital and Home Office registered pathologist Dr Charles Alexander Wilson found that there was no evidence of either external injury or internal disease and that the discolouration had been caused by blood pooling.

She said: “My understanding is that we haven’t found anything that we could ascribe to trauma.”

A toxicology report found evidence of a tiny amount of metabolite of cocaine in Harry’s bloodstream along with the anti-depressant drug fluoxetine.

However, there was not sufficient evidence to show how the substances had entered Harry’s bloodstream or that they had contributed to his death.

Mr Holden said: “It could have got there through breast-feeding, Harry having ingested it orally or through him being present when someone was smoking it.”

As such the doctors both agreed that Harry’s death was most likely a case of 'Sudden Unexplained Death in Infancy'.

Dr Newbold said: “It is a finding that we sometimes come across in sudden or unexpected death but even on the balance of probabilities we can say if it contributed to the death.

“Overall we find the cause of death to be unascertained, we really don’t know what the mechanism was.”

Supplying documentary evidence, Dr Wilson said: “In my opinion it would not be possible to state, even on the balance of probability that cocaine or fluoxetine contributed to Harry’s death.”

Detective Inspector Tom Edmondson also confirmed that he and his fellow officers were satisfied after examining the scene and receiving the post-mortem report that there was no bruising consistent with injury and that cocaine and other substances did not contribute to Harry’s death.

Assistant coroner Philip Holden decided that due to the tragic circumstances he would not be issuing warrants for the family to attend.

He said: “It seems that because of the sad circumstances of this case and that she is grieving for the death of her son that it would not be appropriate for me to issue a warrant.”

The inquest will resume on Friday.