The Telegraph interviews an Iraqi colonel who reveals that Saddam’s military not only possessed WMD, they were prepared to launch them within 45 minutes.

Lt-Col al-Dabbagh, 40, who was the head of an Iraqi air defence unit in the western desert, said that cases containing WMD warheads were delivered to front-line units, including his own, towards the end of last year.

He said they were to be used by Saddam’s Fedayeen paramilitaries and units of the Special Republican Guard when the war with coalition troops reached “a critical stage”.

The containers, which came from a number of factories on the outskirts of Baghdad, were delivered to the army by the Fedayeen and were distributed to the front-line units under cover of darkness.

In an exclusive interview with the Telegraph, Col al-Dabbagh said that he believed he was the source of the British Government’s controversial claim, published in September last year in the intelligence dossier on Iraq’s weapons of mass destruction, that Saddam could launch WMD within 45 minutes.

“I am the one responsible for providing this information,” said the colonel, who is now working as an adviser to Iraq’s Governing Council.

He also insisted that the information contained in the dossier relating to Saddam’s battlefield WMD capability was correct. “It is 100 per cent accurate,” he said after reading the relevant passage.

The devices, which were known by Iraqi officers as “the secret weapon”, were made in Iraq and designed to be launched by hand-held rocket-propelled grenades. They could also have been launched sooner than the 45-minutes claimed in the dossier.

“Forget 45 minutes,” said Col al-Dabbagh “we could have fired these within half-an-hour.”