Research at Leiden Law School is organised in eight research programmes.

The research conducted by scholars from the various institutes and departments is organised within these programmes. All researchers at the faculty participate in one or more programmes. 

• The Legitimacy and Effectiveness of Law & Governance in a world of multilevel jurisdictions
• The Progression of EU Law: Accommodating change and upholding values
• Effective Protection of Fundamental Rights in a pluralist world
• Exploring the Frontiers of International Law
• Criminal Justice: Socially effective criminal justice
• Coherent Private Law
• Reform of Social Legislation
• Limits of Tax Jurisdiction