http://news.bbc.co.uk/2/hi/uk_news/8455642.stm
Les Iversen takes over as head of cannabis row pane
A retired Oxford professor has taken over as chairman of the government's drugs advisory panel, Home Secretary Alan Johnson has announced.
Pharmacology specialist Les Iversen replaced David Nutt, who was sacked by the home secretary last October for "lobbying" against government policy.
Alan Johnson accused Prof Nutt of "crossing a line" into politics.
Prof Nutt is setting up an independent drugs panel to rival the Advisory Council on the Misuse of Drugs (ACMD).
Since that sacking, Professor Iversen has chaired the council's meetings.
During his career, the professor's research has focused on the effects of drugs on the brain.
Recreational drugs
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.
BBC home affairs correspondent Danny Shaw said the appointment of Prof Iversen appeared to be an attempt by the Home Office to restore calm to the advisory council after a turbulent few months.
Prof Iverson said he was "honoured" to take up the post and that the ACMD would continue research into possible harms from 'legal highs' such as mephedrone.
Mr Johnson said: "The ACMD makes a valued and important contribution to our understanding of drugs and their harms. I'm pleased Prof Iversen will be bringing his experience to the role of interim chair.
"The council's work continues, including a forthcoming assessment on the harms of the so-called 'legal high' mephedrone, following on from our control of GBL, BZP and others late last year."
Prof Nutt, the government's chief drugs adviser, was sacked for calling cannabis less harmful than alcohol and nicotine, and saying it was upgraded to Class B for political reasons.
Five other members on the panel subsequently resigned.
More vacancies
In the weeks that followed, the home secretary tried to smooth over the row by making a number of concessions to his drugs advisers.
Mr Johnson agreed to write to panel members to explain any decisions that went against their advice.
He also said he would not pre-judge decisions on drug classification ahead of the committee issuing advice.
However, work on the advisory council is understood to have "slowed down" and a number of meetings were postponed in the wake of the row.
The Home Office has since said it could take two to three months to fill the vacancies left by the other resignations.
Professor Iversen's predecessor, David Nutt, will hold the first meeting of his new Independent Council on Drug Harms on Thursday.
He said five current members of the government's panel have agreed to attend.