When she failed to appear they drove to the victim's house, hiding in bushes and waiting for her to come home.
When she pulled up in the car two of the assailants reached into the car and grabbed her by the hair, ripping out clumps before McLean joined in, punching her in the face and helping drag her from the car so the others could continue the assault.
Judge Kellar said it was concerning that the attack had a high degree of planning and premeditation. McLean had since expressed remorse for the position that she had found herself in, but not for the attack.
"People routinely go to prison for this type of offending," the judge said in warning McLean that she had only stayed in the community because of a lack of prior offending.
McLean was sentenced to six months' supervision, 160 hours' community work and was ordered to pay a $200 emotional harm payment, which matched what the other girls had been ordered to pay in the Youth Court.