I have been asked to reply on behalf of the Department for Education.
The Government recognise the important and valued role schools play in supporting children's mental health. We are clear that the education system needs to work effectively with the health service to identify and support children who have serious or complex mental health problems. Ultimately, what kind of support is required and where that support is delivered is a matter for local decision, based on local need. It is for health and education bodies to work together to determine when that support should be delivered directly in schools. Schools can also use their own budgets to purchase services to meet the needs of pupils, including supporting pupils' emotional and mental health. Funding for these types of support is included in the Department's Early Intervention Grant (EIG) to local authorities.