Nude pictures plot

Two teenage girls were convicted yesterday of helping to strip a drugged 15-year-old and take nude photographs of her.

The pictures were then used in an attempt to blackmail the victim's mother.

The pictures were sent to the girl's school principal after her mother refused to pay $600,000 for them, the District Court heard.

Waitress Chan Yee-yan, 18, and student Hui Pui-yee, 16, were convicted of aiding and abetting an indecent assault.

Chan was also found guilty of blackmail.

The two had denied all charges.