Hi Sarah

A little follow up to this that might help you.

My husband has recently registered with Ofsted to work as my assistant.

We can now have 5 children under 5, including 2 under age 1, when working together

Although he had a CRB check when I first registered back in the 80's he had to have an Enhanced check to become an assistant.

The whole process from enquiring with Ofsted to him becoming registered took just 3 weeks and 3 days.

Hope that helps.