Michel de Klerk has registered the follow principal (and secundary) legal practice areas in the Netherlands Bar's register of legal practice areas:

• General practice: Criminal Law
• Familylaw: Youth protection Law
• Psychiatric patientslaw
• Criminal law: juvenile criminal law, financial and economical criminal law, criminal law for mentally ill supects, extradition and surrender law,

Based on this registration Michel de Klerk is required to obtain ten trainingpoints per calender year in each registered principal legal practice area in accordance with the standards set by the Netherlands Bar.