That's not a bigger issue because the police simply had a warrant for the person who shared the documents. The first sentence of the article is:
> A man who viewed documents online for a controversial London property development and *shared them on social media* was raided by police after developers claimed there had been a break-in to their systems.
"...Hutchinson said his identification by Leathermarket and subsequent arrest raised questions in his mind, saying police confirmed to him that the company had handed over an access log containing IP addresses: "Now, how that ended up with me being in the frame, I don't know. There's part of this that doesn't add up..."
..."