Deals with litigation under criminal business law (white-collar crime), criminal liability of business entities and penal fiscal cases. Advises on protection of personal rights and press law.
Hanna was an expert on criminal law in the Analysis Department at the Chancellary of the Polish Parliament (Sejm). She also advised the Criminal Law Codification Committee and the Civil Law Codification Committee.
Member of the Criminal Law Association
Member of the Polish Fulbright Alumni Association
Member of the Warsaw Bar Association of Advocates
Author of over 70 publications on criminal procedure, press law, legal ethics, penal fiscal law, and numerous expert opinions for the Sejm and the Senate of the Republic of Poland
Co-author of a "Report on an analysis of criminal cases brought against members of the statutory bodies of business entities in which final and non-revisable acquittal or discontinuation judgments have been issued".
Associate professor at the Institute of Criminal Law at Warsaw University.
She co-operates with the Helsinki Foundation in the Observatory of Freedom of the Media and the Innocence Clinic projects. An expert to the Taxation Council at the Polish Confederation of Private Employers Lewiatan and a member of the Helsinki Foundation Programme Council - Precedential Cases Programme.