Marq Wijngaarden specializes in criminal law, immigration law and asylum law. He also practises administrative law. Many of his cases cross international borders; not only immigration cases, but also criminal and administrative cases. In addition, he's a member of the professional association for criminal and immigration lawyers, and regularly gives courses for lawyers, judges and students.
Member of the Asylum Advice Committee for the Dutch Council for Refugees, teacher at OSR and SSR legal training institutes.