[Peach]

From the story:

Smith told AP he protected the identity of the source he had obtained the documents from by typing copies of them on plain paper and destroying the originals.

[Sir Gawain]

“I was given them last September while still on the [Daily] Telegraph,” Smith, who now works for the London Sunday Times, told RAW STORY. “I was given very strict orders from the lawyers as to how to handle them.”

“I first photocopied them to ensure they were on our paper and returned the originals, which were on government paper and therefore government property, to the source,” he added.

http://rawstory.com/news/2005/Backstory_Confirming_the_Downing_Street_0614.html