rred list information is obtained as per their funding agreement. 83 visitors attending an activity in school such as a sports day. For visitors provided via a third party see paragraphs 290-293. 304. Schools and colleges should not request DBS checks or barred list checks, or ask to see existing DBS certificates, for visitors such as children’s relatives or other visitors attending a sports day. 305. Headteachers and principals should use their professional judgement about the need to escort or supervise such visitors. 306. For visitors who are there in a professional capacity schools and colleges should check ID and be assured that the visitor has had the appropriate DBS check or the visitor’s employers have confirmed that their staff have appropriate checks. Schools and colleges should not ask to see the certificate in these circumstances. 307. Whilst external organisations can provide a varied and useful range of information, resources and speakers that can help schools and colleges enrich children’s education, careful consideration should be given to the suitability of any external organisations. 308. School and college safeguarding policies should set out the arrangements for individuals coming onto their premises, which may include an assessment of the education value, the age appropriateness of what is going to be delivered and whether relevant checks will be required. Volunteers 309. Under no circumstances should a volunteer on whom no checks have been obtained be left unsupervised or allowed to work in regulated activity. 310. Whilst volunteers play an important role and are often seen by children as being safe and trustworthy adults, the nature of voluntary roles varies, so schools and colleges should undertake a written risk assessment and use their professi