This collection of essays is written by some of the world’s leading experts in international human rights law, and corresponds to the main junctures in the professional life of Professor David Kretzmer, a leading human right academic and practitioner. The different essays focus on contemporary human rights protection challenges. They address conceptual problems such as differences between limits and restrictions, and application of human rights standards to businesses and international organisations; legal doctrinal responses to changing realities in the field of surveillance and identity politics; the weakness of monitoring institutions engaged in standard setting; and the practical difficulties in applying international human rights law to the Israeli-Palestinian conflict in a manner sensitive to gender dimensions and the particular political dynamics of the situation. Collectively, the essays offer a rich picture of the current potential shortcomings of international human rights law in addressing complex problems of law, politics and ethics.