This volume focuses on the operational of international and hybrid criminal courts. Eight expert authors analyse what happened, or didn't happen, in the major international criminal tribunals (ICTs) of the past 20 years, and make constructive suggestions for improvements. Four articles concern issues in particular tribunals: Rwanda, Sierra Leone, East Timor and Cambodia. Other articles consider the problems raised by the right to a speedy trial in ICTs and the principle that the ICC should be complementary to, and not competitive with, state domestic courts. Critical Assessments of International Criminal Courts is a special issue (Volume 27 No 1) of the journal Law in Context.