Or
this article from October, in which the author's figures include numbers for cost of immigrant crime and HIV treatment. Which would be
slightly more credible if his source also did. Slack changes the wording to make his figures more spooky.
The report that the author quotes also includes the following: 'These different estimates should not be added to make a total. They are preliminary and some categories may overlap with others.' Slack does this anyway despite a clear warning not to do so (and why) from his own source. Which inflates his figures on the cost of immigration.
He also (incorrectly) rounds a figure (in the report he is sourcing) of �3.08bn to �4bn. This adds an extra billion to numbers which are allready incorrect.
I don't want to start an immigration debate here. But it's an example of the way the DM fiddles its evidence.