Select Committee on Science and Technology Minutes of Evidence


Examination of Witnesses (Questions 980-986)

DR RICHARD PIKE, PROFESSOR MARTIN TAYLOR, DR CAROLINE WALLACE AND DR PETER COTGREAVE

24 MAY 2006

  Q980  Dr Harris: I want to ask you about the precautionary principle because your evidence, as the Royal Society evidence talked about the precautionary principle having several conflicting definitions, but then in your evidence you talk about the precautionary principle, not a precautionary principle. Should it be flexible and undefined and vague or should it be more defined and therefore less flexible?

  Professor Taylor: All I can say is that when we speak to the precautionary principle I think we are speaking of the generic one, as I think has been discussed in this room, where there is a paucity of scientific evidence and what do you do, how do you handle that. There are formal definitions apparently in the document by POST and that is where the plurality comes from. I think it would be good if we could all fix on one definition.

  Q981  Dr Harris: Do you think the Government has done that across departments?

  Professor Taylor: I am not aware of that. That would be helpful.

  Q982  Dr Harris: They talk about a precautionary approach and define that.

  Professor Taylor: Maybe that is a thing we could take up with Dave King to try and clarify what is meant by fixing the precautionary principle.

  Q983  Chairman: I think if the Royal Society could do that and actually define the precautionary principle you would do mankind a huge favour, and particularly Dr Harris.

  Professor Taylor: I am not sure if that is a joke or homework!

  Chairman: Both.

  Q984  Dr Harris: The Royal Society point out that the misapplication of the precautionary principle can cause real harm. I think it was the Royal Society of Chemistry that gave two examples, one of which was the precautionary approach taken with regard to DDT which it is said, and there is good evidence, caused millions of deaths from malaria without any good evidence of benefit, and other examples as well. What do you think the way forward is on the precautionary principle?

  Dr Pike: The way forward is obviously to think through the policies or the decisions one makes. In other words, with DDT there was obviously a short-term benefit and there are other examples where there are short-term benefits but other things come into play. One has to think through what those are before you actually make decisions.

  Chairman: Margaret?

  Q985  Margaret Moran: We have touched during this session on the role of the media in terms of shaping public perception, but can you just tell me what you think is the primary role of public engagement? Is it to shape their opinions, is it inform the public or is it to receive concerns back from the public? How can we manage the expectations of the people we are consulting so that we get the best scientific outcomes?

  Dr Cotgreave: I think the answer is probably all three of those things. I think you need to shape public opinion, you have got to lead, but you have also got to take public opinion into account, hear what it is, and if you want to shape public opinion and know what it is, you have got to inform people of the basis behind the things that you are doing. I think it is probably all three of those things. Sorry, what was the second part of the question?

  Q986  Margaret Moran: How do we manage the expectations of the people being consulted?

  Dr Cotgreave: I think you have to be a lot more honest with people than we have been in the past. BSE is a classic example of this where Ministers went round saying, "Beef is perfectly safe," and John Gummer gave his daughter that beef burger that she did not want to eat. That is not a party political point. I think ministers of any persuasion would have done that at that time. Nobody really believed him and believed the Government and they were right because in fact the Government was misrepresenting the level of uncertainty that the scientists had given them. The Scientific Committee had said that there was a remote risk that this could be dangerous. Nevertheless, the Government went round saying it was perfectly safe. So I think you have got to be much more honest with people. My reading of the way things are done these days is, for example, on bird flu you see Dave King on the news, on the telly or in the paper much more often than you ever used to see Bill Stewart in the days of BSE. You see the scientists and you know "this is someone whom I can trust. This is not a party politician trying to sell me a beef burger; this is someone being honest with me and hedging their comments around a little bit of uncertainty." You cannot manage expectations by telling people it is perfectly safe when everybody knows that nothing is perfectly safe.

  Dr Wallace: We would agree that one of the main objectives of communicating with the public is to be honest about uncertainty and stop that turning into panic. The MMR issue rumbled on was because it was not addressed properly. An example of when it was done well was in the 2001 foot and mouth outbreak with the concern that burning carcasses on pyres would affect the amount of dioxins in milk. John Krebs immediately appeared in the media, explained what the risk assessment was, what the proposed monitoring programme was and suggested that people consumed milk from not within a two kilometre radius of the pyres, and panic did not arise.

  Chairman: I am very sorry but we have to come to the end of this session. Can I thank you all enormously for your contributions and forgive us for the shortness of our time with you. We very much appreciate not only your contributions but also the written evidence which you constantly give to us. Professor Taylor, if you can resolve the issue of the precautionary principle you will do mankind a great favour.


 
previous page contents next page

House of Commons home page Parliament home page House of Lords home page search page enquiries index

© Parliamentary copyright 2006
Prepared 8 November 2006