Did Home Secretary Alan Johnson realise the can of worms he was opening when he sacked Professor Nutt?

When so-called “New Labour” came to power in 1997 we were promised evidence based policy; the idea was to have policies in all sorts of areas which could actually be shown to work and which were based on hard evidence rather than wishful thinking. It was one of those things that was easy to say and looked good on paper, but it was always going to be  a difficult promise to apply to the sort of drugs policy we have, one based on prohibition.

There is a basic law with science which is not negotiable and which is fundamental to what science is: If you can’t measure it, you can’t do science on it. Science, in fact, is the ability to quantify and measure things, so the need to be able to measure things in a statistically valid way is an absolute requirement.

Any scientist who takes on the job of providing the evidence for the harmfulness or otherwise of illegal drugs therefore has a big problem from the word “go”. He can only really measure what he can see, which means the visible results of illegal drug use. This has to mean the reported effects which are discovered as a result of something happening, the fact that these drugs are illegal means that no studies can be done on the user group in the way they can be done with any other substance or pastime.

Being illegal, it isn’t possible to sample the user group, yet that is what any assessment of relative harm has to do.  If all the data you have comes from the blue light services – be it emergency call-outs or acts of enforcement – the data is going to be skewed. You simply aren’t going to see the non-problematic users, or those who keep their heads down and don’t get busted.

So into all this mess come the people in the government’s advisory body on drug misuse – the ACMD. Collecting such data and trying to make sense of it was Prof Nutts job. Now this blog has often criticised the weak science underpinning drugs policy and indeed for the lack of attention drawn to the hopelessly inadequate methods used to collect what data they have , but even given the skewed nature of the data Prof Nutt’s assessment of relative harms  were enough to undermine the basic reasoning which is at the heart of government policy.  Alan Johnson realised where this would lead and was thus keen to stop the debate before it had a chance to get going, if that were to happen the essential logic of prohibition would collapse.

Assessing the harm caused by drugs has another dimension as well, in that because the drugs are illegal users have no idea what they are taking in terms of dose or how pure the drug is. If the users have no idea, then the blue light services who pick up the pieces and thus provide the data have even less. Again, the collected data will be skewed and will show inflated levels of harm caused by the uncertain supply side caused by the prohibition law. What this means of course is that any comparison between a legal drug such as alcohol and an illegal one like cannabis is skewed by the different regimes each drug is governed by. So for illegal cannabis to be judged as less harmful than legal alcohol is even more depressing for supporters of the present policy.  Such a debate simply could not be allowed to take place.

So it is into this minefield that Professor Les Iversen steps. Les Iversen is a retired professor of pharmacology and is a specialist in neuropharmacology, the study of how drugs or chemicals affect the brain and nervous system. As soon as his appointment was announced the usual suspects in the media went into bouts of hysteria. As the Sun put it

Oh no, Nutt again! Drug Tsar; dope is safer than fags

Yeah well, that’s the sort of braindead comment you might expect from the Sun, but it wasn’t confined to that gutterpress hate-rag. Fact is over the years Prof Iversen has been quite frank about cannabis and it’s potential for harm and it’s just the sort of thing the prohibition movement doesn’t want to hear. Perhaps in a damage limitation effort, Prof Iversen has tried to back track on his earlier comments. According to the BBC

In an article in 2003, he wrote that cannabis had been “incorrectly” classified as a dangerous drug for nearly 50 years and said it was one of the “safer” recreational drugs

Not only that, but as the Mail reported in his book “The Science Of Marijuana” published in 2008 he wrote

The more extravagant claims about super-potent cannabis suggesting that recreational users today are exposed to a wholly different drug from the one their parents may have consumed 20 to 30 years ago are not supported by the evidence.

And also

‘Cannabis can cause anxiety, agitation and anger among politicians. The consequences of this cannabis-induced psychological distress syndrome include over-reaction with respect to legislation and politics and a lack of distinction between use and misuse of cannabis.’

Yet, despite his extensive research into the several thousand years of history of human use of cannabis Les Iversen has presumably done, in the last year or so he seems to have radically changed his mind to something more in tune with government thinking, as the local London rag The Metro reported back in June last year:

New potent forms of cannabis may lead to a mental health timebomb, an expert has claimed. Strong skunk could have long-term health risks, including a significantly higher risk of schizophrenia. Heavy users are thought to have a 40 per cent greater risk of developing the illness. Skunk is now more popular than traditional resin imported from Morocco – and it has three or four times the psycho-active ingredient, THC. ‘Skunk compared to resin is like a strong wine versus beer,’ said Les Iverson, of the Advisory Council on the Misuse of Drugs.

Now that Metro report is fairly typical of the reefer madness V2.0 reporting we’ve got used to over the past few years, but that fact that Les Iversen was willing to add his voice to it is regrettable. He has also made it clear in several interviews that he’s changed his mind in recent years and that now he’s a safe pair of hands to advise the government in a non-critical way. Well, he hasn’t actually said that, but it’s safe to assume that’s what he means.

However, the media senses blood and the Telegraph expressed what is, perhaps, in the minds of politicians faced with a difficult situation of having made such a big thing of relying on science to provide the evidence base for their policies: Gerald Warner was allowed an extraordinary opinion piece in Saturday’s edition:

Government ‘scientific advisers’: who needs these nuts in white coats?

Who cares? Thanks to climate change scams, swine flu and a whole host of own-goals, the status of the white-coated prima donnas and narcissists has never been lower in the public esteem.

It’s not clear on what basis Gerald thinks policy should be developed if not on evidence, but others might be providing the clues as The Mail reported in the story mentioned above:

But Tory MP Ann Widdecombe said:  ‘We need to know very firmly what his views are and why he has seemingly changed them so radically in less than two years.

She is right to be cynical about Prof Iversen’s sudden change of mind, but the second part of her statement is more interesting when she went on to say

And if there is any doubt about what his views are, then his position must also be in doubt.’

So there you have it, if there’s any doubt that Professor Iversen does not support the government line on cannabis than he shouldn’t have the job. Ann Widdecombe is a wonderfully honest politician who often says things that the more astute would never come out with.

The Tory shadow science minister, Adam Afriyie was also depressingly honest when asked for his views on the sacking of prof Nutt. Addressing the science election debate dubbed “geek the vote”, hosted by the Campaign for Science and Engineering the Times Higher Education Supplement reported:

It is right, I think, that any minister and any secretary of state, if they have an adviser, should be able to dismiss them on any terms at all – even if they just don’t like them … they should be at liberty to dismiss them or not use them if they don’t want to. That is absolutely correct.

So it’s pretty clear the way this is going, politicians are fed up with troublesome scientists who tell them things they don’t want to hear. If the Tories win the next election, which is probable, the future for evidence based policy making is bleak indeed.

But in truth the war on drugs is and never has been influenced by science, even by skewed partial science. Neither is it affected by any need to be accountable. Recently representatives from Transform met with Prime Minister Brown to press for a proper cost benefit analysis of the prohibition policy. This is something Transform has been wanting for some time now and last week the Prime Minister sent Danny Kushlick his considered reply. As Danny reported on the Transform blog the considered reply was a kurt “NO”. Brown wrote:

We do not intend to undertake an impact assessment comparing the costs and benefits of different legislative options for domestic drug policy. We see no merit in embarking upon such an undertaking in view of our longstanding position that we do not accept that legalisation and regulation are now, or will be in the future, an acceptable response to the presence of drugs.

As Danny commented

the Government will not review the evidence of efficacy of the current policy or compare it with alternatives because it is committed to the current regime and, without exploring the outcomes of the Misuse of Drugs Act or prohibition, has decided that alternatives are “not acceptable”

This is actually starting to look like denial on the part of government, they are scared to allow any open debate on any aspect of prohibition; they know that if a debate is allowed, or if we actually knew how ineffective and damaging the whole mess is the drugs policy would collapse overnight.  There might be a reason for this paranoia and denial and to find it, all we have to do is look to see what’s happening in the Americas, even perhaps in the US. As the Independent on Sunday reported today

After 40 years, Washington is quietly giving up on a futile battle that has spread corruption and destroyed thousands of lives.

After 40 years of defeat and failure, America’s “war on drugs” is being buried in the same fashion as it was born – amid bloodshed, confusion, corruption and scandal.

The global war on drugs is under pressure like never before, but it seems British politicians and their supporters in the media will have to be dragged kicking and screaming into reform. If the USA really does end the war it started though we will inevitably follow in some way or other. The writing is on the wall for the war on drugs – in large fluorescent spray paint.