43 Police forces across the UK have been asked for details of their inquiries.
The new body has been set up by the Association of Chief Police Officers and will collate and share information, Chief Constable Simon Bailey said.
It is due to meet in September.
While it will not lead any investigations itself, it will gather information involving well-known figures and organisations such as hospitals, children’s homes and parliament.
Mr Bailey, who will chair the group known as Operation Hydrant, said: “This is likely to involve all police forces in the UK, and we have included Police Scotland and the Police Service of Northern Ireland in our remit.”
This story updates the original report from the Sunday Times 13th July, when it was first announced that a ‘VIP sex crimes group’, comprising of 13 forces, was being established under Simon Bailey, chief constable of Norfolk.