Steve McIntyre owns Climate Audit, one of the most popular Climate Change Denialist websites. He's been at the center of the warming wars for years, and no more so than in the past six or so months after the CRU hack. Given this, it isn't surprising that the RCMP and U.K. police have been after him to answer questions re the stolen emails.
Here's a statement from McI-- straight out of the horses' mouth:
Last week, I was contacted by the Royal Canadian Mounted Police (the Canadian federal police) who had been asked by UK police to locate a Stephen McIntyre. The Canadian policeman, who didn't seem to know much about the case, said that the UK police wanted to talk to me about whether there had been any misrepresentations of my articles. !!!! They also wanted to locate Andrew Weaver. I confirmed that I was the Stephen McIntyre in question and that I was prepared to talk to the UK authorities - expressing very clearly to the Canadian policeman my total disdain for the idea that this was police business. The inquiry in question presumably did not come from the Norfolk anti-terrorism detachment, as I'd already talked to them at considerable length and they knew how to contact me. I haven't heard anything further yet.
IMHO, FWIW, it's not Steve that's purloined 1,000s of personal emails from Phil Jones and Co. But it's almost certainly one (or more) of his readers; the the stolen documents all relate to issues McI has been obsessing over the years (Mann's work, Briffa's work, and etc.).
And I see from the above that McI is still hinting that this was the act of a whistle-blower from within CRU. Its worth noting (especially when you realize that U.K anti-terrorism people are involved in the investigation) that the cops don't buy it.