This is not meant to spoil the party. It is, of course, heart-warming to see the pictures of the enormous celebration marking the 25th birthday of Louise Brown, the first IVF child in the world who was born in Britain into a perfectly ordinary family, that of John and Lesley Brown of Oldham. I remember the historic moment in 1978 well, as my own son had been born that January. When Louise was born, the nation was overawed by the technology that succeeded where God had failed. Professor Bob Edwards and Patrick Steptoe gave the gift of fertility to a woman who had virtually no chance of producing a child, in my view the most affirming of life's experiences This is not meant to spoil the party. Years later, when I was trying to have another child and had had two miscarriages in swift succession (third time proved lucky) and was told that there was only a very slight chance of success, it felt as if darkness had descended over my heart and that I could never enjoy life again And I already had one child. The joy and completion that have been experienced by the approximately one and a half million IVF mothers must be inestimable.

And with the science now advancing at such a rate, it is likely that the next 25 years will bring babies to many others, including post-menopausal women who cannot have children at present (unlike men, who can and do become enthusiastic fathers from their late fifties into their eighties). Sufferers of cancer, a growing reason for infertility in the West, can at least hope that they may become parents.But yet, in spite of the obvious feeling of optimism these tremendous advances can instil in us as a society (the best of science should do this, and we are grateful), I believe that the whole IVF industry is in need of much more dispassionate scrutiny, and ought to be subject to continuous assessment and tough questioning.I have met a number of the top doctors involved in the field - top in the sense of being high up in the league tables that count the number of live births - and I have tried to speak to others, and they seem to see themselves as powerful pioneers. Indeed, they are people who do not expect to be investigated, interrogated or even politely interviewed. Even Robert Winston, with his deservedly excellent reputation, obviously felt recently that it was not worth his time engaging with my inquiries as an interested journalist.I have talked to other practitioners who believe both in this progress and in greater accountability. I have visited clinics and discussed my concerns with past and present heads of the Human Fertilisation and Embryology Authority (HFEA), and I have found much too much caution and, surprisingly, some ignorance about what is really going on. The authority has to become much more vigilant as we navigate ever more morally perilous, if scientifically exciting, territory.It is interesting to note that almost all the big names in this business are male.

I found only four women IVF doctors, and two of them agreed that the inordinate power of some practitioners was making proper regulation almost impossible. Embryologists and other specialists have, off the record, told me that many disallowed techniques were being used in some clinics, and that this information was concealed during HFEA inspections.The amount of IVF treatment has risen by 105 per cent in 10 years, and there seems to be a growing belief that babies can be tailor-made to order as long as you have the money Too busy? Have your eggs frozen Time, ageing, infertility, these can all be manipulated. People go into debt for years to pay for treatments, and private clinics are making millions, and as yet only a tiny number of couples get treatment on the National Health Service - a scandal, really.I now have a thick file of interview notes with IVF clients, many of whom say that they feel badly let down. One mother who contacted me said that she travelled to Spain for treatment after trying the famous private clinics because she felt that what we have in this country are assembly lines with hardly any help to cope with the emotional fallout. Blissfully happy parents were as often critical of the system as were those nursing broken dreams.