Lisa Heath , 5 years , quizzed by police after colleague saw white powder in bag . Assistant at Willowtown Primary School initially said drugs were n't hers . But later changed her story and accepted a caution for possession .
Lisa Heath , 45 , quizzed by police after colleague saw white powder in bag . Assistant at Willowtown Primary School initially said drugs were n't hers . But later changed her story and accepted a caution for possession .