Prime Minister Gordon Brown has been plunged into a damaging row about the use of "dodgy" knife crime figures after a scathing attack by the official statistics watchdog.
Sir Michael Scholar, chairman of the UK Statistics Authority, condemned the release of figures showing an apparent fall in the number of teenage stab victims as "premature, irregular and selective".
In his first public criticism of the Government since the launch of the authority earlier this year he said the release of "unchecked" figures was "corrosive of public trust".
His damaging comments came in an official letter of complaint to the Permanent Secretary at 10 Downing Street, Jeremy Heywood.
He wrote: "These statistics were not due for publication for some time, and had not therefore been through the regular process of checking and quality assurance. I hope you will agree that the publication of prematurely released and unchecked statistics is corrosive of public trust in official statistics, and incompatible with the high standards which we are all seeking to establish."
The Official Statistician, Karen Dunnell, revealed she told Mr Heywood the release of the figures would be a breach of protocol but was ignored.
Downing Street and the Home Office defended the decision to publish the figures ahead of their official release date in March.
But opposition politicians accused ministers of "peddling dodgy figures" and two senior Labour backbenchers also condemned the move.
Liberal Democrat home affairs spokesman Chris Huhne said: "Yet again this Government has been caught peddling dodgy statistics. This seems like a failed attempt to cover up criticism of Gordon Brown by rushing out a flimsy good news story. Gordon Brown promised to end armchair government and the culture of spin when he entered Number 10, but this sorry affair shows both are still alive and well."
In a joint statement No 10 and the Home Office said: "The figures on hospital admissions were published (on Thursday) in order to give the public the most up to date information available about the current knife crime situation in priority areas. They were part of a wider package of statistics ... which detail the impact that our knife crime strategy is having in these areas. Obviously ministers and officials in all departments take very seriously the importance of maintaining the integrity of official statistics. Home Office and Cabinet Office officials will be in touch with Sir Michael Scholar at the earliest opportunity to discuss his concerns."
-Nova