London Mayor Ken Livingstone was today suspended for four weeks by a disciplinary tribunal for bringing his office into disrepute.
The three-man Adjudication Panel for England unanimously ruled that Mr Livingstone had been "unnecessarily insensitive and offensive" to Evening Standard journalist, Oliver Finegold, by comparing him to a Nazi concentration camp guard in February last year.
David Laverick, chairman of the panel sitting in central London, said: "The appropriate sanction is for the mayor to be suspended for a period of four weeks from March 1."
He said the panel was "concerned" that Mr Livingstone had failed to realise the seriousness of his outburst.
Mr Laverick said: "The case tribunal accepts that this is not a situation when it would be appropriate to disqualify the Mayor.
"The Case Tribunal is however concerned that the Mayor does seem to have failed, from the outset of this case, to have appreciated that his conduct was unacceptable, was a breach of the code (the GLA code of conduct) and did damage to the reputation of his office.
"His representative is quite right in saying, as he did on February 23, that matters should not have got as far as this but it is the Mayor who must take responsibility for this.
"It was his comments that started the matter and thereafter his position seems to have become ever more entrenched."