Steve Drizin and Laura Nirider, attorneys for Northwestern’s Center of Wrongful Convictions of Youth, and attorney Robert Dvorak are co-counsel for Brendan Dassey’s post-conviction litigation. Dassey’s defense filed a petition for writ of habeas corpus in the United States District Court for the Eastern District of Wisconsin. A ruling on his petition is still pending.
You can view Dassey’s petition for writ of habeas corpus here: http://freebrendan.org/wp-content/uploads/2016/03/WritDassey.pdf
Brendan’s defense is clear cut. His attorneys argue that Brendan’s interrogators extracted a false confession from him by use of coercion. You can read more about Brendan’s coerced false confession here: Brendan Dassey’s false confession
Brendan’s attorneys also argue that their client had inadequate counsel. From the moment Brendan’s public defender, Len Kachinsky, took the case, he worked against his client, attempting to get Brendan to confess to the crime. Kachinsky stated publicly that he felt his client was guilty and that there was “no defense” for him. You can read more about Brendan’s attorney here: Bad lawyering