The Council of Europe commissioned a comparative study from the Swiss Institute of Comparative Law in respect of filtering, blocking and take-down of illegal content on the internet in the 47 member states of the Organisation. This study describes and assesses the legal framework but also the relevant case-law and practice in the field. It comprises a comparative analysis â which is the subject of this publication â and country reports (available on the website: www.coe.int/freedomofexpression).