A contractual right to subcontract or assign, even where subject to a consent requirement, is a real and substantial right inconsistent with employment, and regulatory requirements for quality assurance do not necessarily convert an independent contractor relationship into employment.
The full text is available to signed-in members, including the 27 later cases that cite this judgment.
1 of the 27 citing cases carry a classified treatment. How each court treated it is available to signed-in members.