About 2am on Friday, August 12, 2011 the victim, who does not want to be identified, was walking from the Cannington train station towards Cecil Avenue when she was struck on the head from behind.
A group of male youths dragged her into trees near the intersection of Cecil Avenue and Sevenoaks Street, where they sexually assaulted her before she broke free and ran for help.
One male offender is described as being aged between 15 and 17 years old, dark skinned, about 183cm tall with a slim build and was wearing a black cap with an A on the front, a black windcheater, black tracksuit pants and black skate shoes.
He also had acne on his face and was missing a right front tooth.
The second male offender is described as being about 16 years old, dark skinned, about 183cm tall with a solid build and frizzy, dark hair in an afro style, and was wearing a mustard-coloured hooded top that had a U on the front with horns on the ends.
The third male offender is described as being between 10 to 12 years of age, dark skinned with short scruffy dark hair and long eyelashes.
Police would also like to speak to two girls who were at Cannington train station and may have seen the group.
The girls are described as Aboriginal, one aged about 17 to 19 years old with bleached, slightly curly hair and of solid build, while the other is aged 13, short and slim.
The victim said she wanted to warn parents not to let young girls go late-night shopping or to the movies after dark in the area unattended or travel on the train alone because it put them at risk.
‘Travelling in groups is not good enough because (attackers) travel in groups ” kids can get separated,’ she said.
‘I’m a fully grown adult and it happened to me’