I posted that quote of the judge’s remarks during the sentencing @Faybian and found them here:
https://www.itv.com/news/central/2023-06-26/judges-remarks-as-teenage-mum-jailed-for-killing-newborn
The fact that that expert, Dr Harding based his view on webcam footage can be seen here in this BBC 16 June report:
Experts differ in their opinions about the mental state of the teenager around the time of the birth.
Dr Duncan Harding, a forensic psychiatrist who was appearing as an expert witness for the prosecution, told the jury he had not seen any evidence to suggest Ms Mayo had a disturbance in the balance of her mind at the time.
But another forensic psychiatrist Dr John Sandford, who appeared earlier for the defence,said he believed she had created a false memory in order to repress her actions, to "block out the bad bits, the bits that are hard to live with".
Dr Harding disagreed and told the court: "She presented as remarkably well intact, the way she speaks to people, presents herself.
"She was in shock, but she's consistent in her account. If she had memory loss, her account would have changed over time as she came to terms with what happened."
Having seen bodycam footage taken by police, after officers were called to the house in Springfield Road the day after the death, Dr Harding stated that in his opinion "Paris didn't meet the criteria for any mental disorder".
"She was remarkably intact and coherent given the circumstances owhat had happened," he continued.
"She's able to have conversations with police officers about her future plans and ambitions. She was planning to be a nurse or a midwife."
https://www.bbc.com/news/uk-england-hereford-worcester-65929543
The other expert witness, another forensic psychiatrist, was Dr Sandford:
Appearing as an expert witness for the defence, forensic psychiatrist Dr John Sandford told Worcester Crown Court that Paris Mayo had "*taken out the bad bits, the bits that are hard to live with - that she extinguished the life of her baby^."
He said that, in his opinion, Paris Mayo was in denial and at no time did she recognise that she was pregnant.
The defendant, who now lives in Ruardean, Gloucestershire, had carried on taking part in her school PE lessons and seeing a nurse at her GP surgery, he told the court.
'More common than triplets' (Insert headline in the text.)
"As a 15-year-old girl giving birth, she went into a state of shock, of panic and distress, with very high anxiety and emotional trauma," Dr Sandford said.
"Such events could lead to a disturbance of the balance of her mind."
He told the court that being in denial of a pregnancy was recognised by the medical profession and was "more common that having triplets".
When questioned about the baby's death, Dr Sandford said the teenager had "repressed the actions".
"She cannot acknowledge it, but she must know that she did it," he said.
The jury heard that, by putting the baby's body into a bin bag, the teenager's actions were that of "somebody emotionally numb and damaged^".
Dr Sandford said it was his professional opinion that Ms Mayo had created a false memory "in which she doesn't have to face the consequences of her actions,"
but told the court that it was also possible that she was "deliberately and deceitfully lying".
(Though no one can know without the transcript, and this report is not clear on this point, it seems to me that after Dr Sandford gave his professional opinion, the prosecution would have asked: “Is it also possible that she was deliberately and deceitfully lying?”
To which, of course he would have had to answer, “Yes” -
but meaning, it is possible.)
What I am not sure about is when did Dr Sandford interview her?
and when did Dr Harding look at the police webcam footage ( a method the judge seemed to see as being a poor standard of evidence)?