The result was a move, led by osteopathy and chiropractic, for CAM to be regulated by law in exactly the same way as mainstream medicine. By 2000, osteopathy and chiropractic were subject to 'statutory regulation' - making it a criminal offence to practice either therapy without being a member of each profession's statutory register. Acupuncture and herbal medicine are due to follow this route by the end of 2005.

As the BMA commented at the time: "People want to know what works and what doesn't. It is sensible if the NHS is going to share treatment and management of patients that there should be good information about therapies available for health care workers and patients. The BMA believes that only those therapies that are adequately regulated should be available on the NHS."

Also in 2000, the House of Lords Science and Technology Committee published a report of its enquiry, investigating mainstream medicine's charge that CAM was largely unproven and over-reliant on the placebo response. In view of its popularity, the Committee reported, the NHS could not allow complementary and alternative therapies to sit on the sidelines of publicly funded health care simply because "theories about their modes of action are not congruent with current scientific knowledge". It called for more 'high-quality' research, "taking into account the fact that many practitioners believe that conventional research methods are not suitable tools with which to investigate their therapies".

The House of Lords' report was addressing the fact that complementary therapies have proved difficult to fit into a framework of randomised controlled trials, the benchmark of scientific medicine which was being widely debated throughout medicine. "The over-emphasis on technical effectiveness has sidelined medicine's interest in our innate capacity for natural recovery and made us less curious about how to catalyse resilience", argued David Peters, Professor of Community Care at Westminster University in his book Understanding the Placebo Effect in Complementary Medicine.

Last year, the Department of Health announced a £1.3m programme to begin a - so far, modest - attempt to build a new type of research capacity in British universities, with the specific aim of bridging the credibility gap around CAM. Instead of subjecting therapies to randomised controlled trials, the emphasis would be more on finding out how and why they were effective.

The aim is not to open the floodgates to all complementary therapies. By no means can all complementary therapies claim to have proved they are any more than mere quackery. And as Cancer Research UK recently pointed out: "There is a tendency to believe that complementary medicines are always harmless. This is not the case". What is clear, however, is that people with health problems in the 21st century will increasingly have unprecedented access to both modern Western medicine and a range of safe and effective traditional therapies. And the clever way to proceed is to use the two types of medicine in conjunction - so that both become truly complementary.

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