All partners are members of the Dutch Association of Criminal Defence Lawyers (NVSA) and of the European Criminal Bar Association. In addition, bearing in mind the international character of De Roos & Pen, several partners are also -members of the American Bar Association and international organisations such as the -International Bar Association. Additionally, some associates are also members of the Netherlands Association of Young Criminal Defence Lawyers (NVJSA).
Furthermore, De Roos & Pen is deeply rooted in academic knowledge and the office has close ties with various universities. Several lawyers have an academic background. Additionally, many of our lawyers regularly publish in professional journals and advise on changes in the law. Additionally, a number of lawyers lecture and speak at congresses and seminars. As a result, they are closely involved in all relevant developments in their field.