Dr Sonia Grover, a paediatric gynaecologist, told the court it was possible the tips of the girls' clitorises had been removed, but there were other more likely medical explanations.
"If you were going to remove tissue, it would hurt and bleed," she said. "The information I was given was that the girls did not complain of pain or problems in the days after. So it means whatever was done was a minor procedure."
After the verdict, Crown Prosecutor Nanette Williams asked that bail be revoked for all three offenders, arguing that there was a risk they would flee the jurisdiction and that they now faced jail.