The alleged murderer of an Ammanford man was described in court today as "horrendously" unreliable in her accounts of what happened.

Elwen Evans QC, leading the prosecution, examined a list of untrue statements made by Maxine Williams following her arrest after the death of her mother's partner, Bernard Evans.

Mr Evans was fatally stabbed in the arm in the kitchen of his home in Pantyffynnon Road in the early hours of January 22.

Dr Gaynor Jones, a forensic psychiatrist, told Swansea crown court she became involved with Williams while she was on remand at Eastwood Park women's prison near Bristol.

Dr Jones said she had access to the various statements made by Williams up to that stage and also interviewed her herself.

She agreed that at one point Williams alleged that her mother Julie had carried out the killing. Williams also described her mother as "evil" and claimed she had broken her arms and legs "chucking me about when I was a child."

Williams also made several accusations of sexual abuse against family members.

Dr Jones said she agreed that Williams was so unreliable she could not accept much of what she told her.

That included a claim that during the days leading up to Mr Evans' death she was drinking 48 cans of alcohol a day as well as taking £300 worth of heroin every 24 hours.

Williams also told how she had been arrested at the age of nine for being drunk and kept in custody by police in Ammanford. She agreed with Miss Evans that was simply impossible.

"She is an horrendously unreliable historian," said Miss Evans.

"Yes," replied Dr Jones.

Miss Evans said Williams' accusation that her mother was responsible for the killing was hardly in keeping with her later explanation that she stabbed Mr Evans to protect her.

Williams, of Pembrey, has declined to give evidence on her own behalf.

She denies murder and the trial continues.