In 1979, the Royal Commission of Inquiry on Chiropractic in New Zealand, after an 18-month study in five nations, including the U.S.A, concluded, “The Commission has found it established beyond any reasonable degree of doubt that chiropractors have a more thorough training in spinal mechanics and spinal manual therapy than any other health professional.” It found that chiropractic was a scientifically based, valid, safe and very effective treatment that should be in the mainstream of health care and should be used in hospitals.

Ref: Chiropractic in New Zealand – Report of the Commission of Inquiry, 1979.