Mr Reid, Lord McAlpine’s solicitor, told BBC Radio 4's The World at One: “We have been inundated by the public who have wanted us to deal with this problem of Twitter. We have been watching people who have been taking down what they put on Twitter. What they don’t seem to understand is that once it’s there you can’t take it down. And, what’s more, we already have all the information. We have managed to find a couple of firms of experts who have managed to produce the pre-tweets, the post tweets, the effect of the tweets and the re-tweets. What starts at one ends up as 100,000 or more in some cases.