What is the procedure for suspending a volunteer?

We have had offers from students undertaking their Duke of Edinburgh community service award to volunteer for us. What sort of insurance will we need to ensure we are meeting legal requirements if they do basic jobs (grass cutting etc) on our premises? And are we legally obliged to supervise them? They are 14 to 15 yrs old.

My Board is about to engage on recruiting a company secretary who would be a board member/trustee. We are a charitable company limited by guarantee. This is an urgent requirement as the previous secretary has sadly died recently and no other board member or employee has the capability to perform the company secretary function. Are you aware of any lists of persons (preferably based in the north east of england) who may be interested in such a position on a voluntary basis.

One of our members has asked whether they are in contravention of any legislation regarding discrimination and/or whether their policies are discriminatory. Basically, they are a Christian group undertaking prison visiting, for which they get paid by the Prison Service. This work involves writing groups (with pen pals) and life skill groups. The life skills group is based around Christian values and uses parables. The problem is that they will only use practising Christians as volunteers; anyone wishing to get involved has to get a reference from their minister. Furthermore, they will not accept homosexual volunteers.

Could you advise as to the legality of their practice and any amendments they could or should make to their practice.