...snip...
There's more on the general character and reliability of Dickens' "dossiers" at
this link. I can't vouch for where that site comes from, but it certainly looks like it includes the reply sent to Dickens by Leon Brittan after receving the allegedly "lost dossier". There's also a nice timeline of Dickens' political career, and his numerous "dossiers".
Dickens apparently wasn't just big on hunting down paedophiles and homosexuals (pretty much the same thing), but also satanists and witches (pretty much the same thing yet again, probably).