From the blog "Tales of Skyrim"

What a mess! We were arrested in Riften and nobody told us anything about the charges against us, yet. I doubt we will ever hear about them. That's what I had learned during my last visits in imperial dungeons. Flashback, Pale Pass Fort, 6th of Sun's Height, 201 E4 Now, here in Riften, they take no chances with us. Even inside of the closed prison gates, we are kept in iron. And we will be dumped into some damp and dirty lice infested hole any minute now. Jai