Jersey's Royal Court heard how a former Catholic Priest, charged with ten counts of sexual abuse against a child, carried out 'exorcisms' on his alleged victim.
Piotr Antoni Glas, 61, faces eight charges of gross indecency and two counts of indecent assault for alleged incidents involving a boy aged between 13 and 15.
Witnesses took the stand today (Thursday, 3 April) to give evidence for the prosecution of Mr Glas.
The court was told how Mr Glas would 'playfight' with the complainant before committing sexually motivated acts between 2004 and 2007.
The court heard how the alleged victim would occasionally sit on his lap and "play wrestling games" with him.
A witness said she saw Glas with a black eye after the teenager had allegedly attacked him to free himself after his face had been held against the priest's groin.
As a result, the priest carried out a series of exorcisms on the victim, as Glas said he felt the victim was "possessed".
The witness said that during the spiritual practices designed to expel 'the devil', the boy got "very angry and tried to get the defendant off him."
She added that during these exorcisms, the victim would be held down by two men, with Glas talking to him in Latin, breathing over him and putting oil on him.
The witness said: "I wish I had the courage to say stop." She added that she felt "horrified" they had let it happen.
As the witness was questioned, Glas would often have his eyes closed in the dock, sometimes looking up to the ceiling and rocking back and forth, holding prayer beads in his right hand.
Earlier in the trial, the court heard how the defendant had a sexual interest involving feet - a 'foot fetish' that police say goes back many years.
Piotr Antoni Glas denies all the charges against him, and the trial continues.