Knoops & Partners Advocaten operate at both the national and the international level. It endeavours to provide high quality legal assistance to both individuals and governments. This legal assistance aims at representations in court as well as advisory opinions. The office can rely on a scientific expertise, which is, amongst others, expressed in the fact that Mr. Geert-Jan Alexander Knoops holds a chair as professor of International Criminal Law at Utrecht University. On the academic level, Knoops & Partners contributes to lecturing on several courses on International and National Criminal Law. Knoops & Partners Advocaten handles cases on the basis of fee paying as well as on the basis of legal aid (including legal aid based on financial support from the Dutch government, "toevoeging").

The lawyers within Knoops & Partners closely work together in teams, while sharing their various expertise in the variety of cases. Every case is being supervised by two lawyers and in International Criminal cases the members of Knoops & Partners as well as their researchers even work in more extensive teams. In this regard, Knoops & Partners can also rely on a vast group of associate lawyers in several other countries.

The office is especially renowned for its specialization in International Criminal Law in general, defence work for International Criminal Tribunals in specific as well as, domestically, legal representation in criminal cases before the Supreme Court in the Netherlands, inclusive review procedures before this court.

Knoops & Partners Advocaten is specialized in the following fields of law:

Criminal Law
- Criminal Law matters
- Appeal cases at the Supreme Court
- Review of criminal cases
- Extradition matters
- Military Criminal Law

International Law
- European Court of Human Rights
- International Criminal Tribunals
- Public International Law

Criminal linked procedures
- Compensation Procedures 
- Injunctions and interim measures

Advisory opinions
- Human Rights
- Military Operational Law
- International Humanitarian Law
- International Court of Justice
- Implications of International Law

Miles4Justice
Knoops & Partners advocaten has a special bond with the Miles4Justice charity. Mrs. Knoops-Hamburger and Mr. Knoops both actively fight against human rights violations through their roles as chairman and member of Miles4Justice. By participating in sailing races and events Miles4Justice raises money that helps combat human rights violations worldwide.