In Baikunth Nath V chief medical officer, the Supreme Court laid down

"Preventive Retention" means the Dention of a person

Before the advent of the constitution, India was governed under which Act

Equal justice and free legal aid is provided in the constitution under 

Compensation in case of custodial death is given by Supreme court in the case

Identify the author who uttered the following sentence :

“Man is born free but is everywhere in chains.”