Parents remain most concerned about sexually explicit outdoor advertising, marketing during children's TV programmes and inappropriate products for children.
Targeting children on Facebook and in stores are other significant concerns.
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The founder of a free school and two ex-staff members have been jailed for defrauding the Department for Education of thousands of pounds.
Pino Pagliara told ITV News a lucrative salary meant he told undercover reporters posing as football investors "what they wanted to hear".