In the United Kingdom, only an authorised or licensed Insolvency Practitioner (usually abbreviated to IP) may be appointed in relation to formal insolvency procedures.
Quite often IPs have an accountancy background. A few active practitioners are lawyers, but it is not necessary to be qualified as either, as since 1986 there has been a direct entry route to the profession.
Read more about Insolvency Practitioner: Insolvency Is A Regulated Profession, Trade Body, Procedures Requiring An Insolvency Practitioner