Ineffective assistance of counsel (IAC) claims are commonly asserted in post-conviction motions for appropriate relief. North Carolina law allows a defendant to file a motion when their attorney provided ineffective counsel.Note that claiming ineffective assistance of counsel means that you give up some of your attorney-client confidentiality privileges with that attorney. As a result, most claims of ineffective assistance of counsel fail. Washington, defendants alleging ineffective assistance of counsel must show both that their counsel's performance was deficient (i.e. The Court of Appeals wrote, "we hold that violation of the SID is evidence of ineffective assistance of counsel. Washington, the Supreme Court addressed ineffective assistance of counsel in criminal cases. The Supreme Court reversed the decision of the court of appeals concluding that Defendant received ineffective assistance of appellate counsel. Effective counsel acting in the role of an advocate. The Legal Requirements to Prove an Ineffective Assistance Claim: Strickland v.