At the heart of the Supreme Court's judgment in Jaskaran Jeet Singh Deol v State of Punjab is a simple constitutional proposition: when the State takes away a person's liberty, it must tell him why.
In its judgment, the Court has reiterated a long-standing principle of criminal law and constitutional governance that an arrest cannot be divorced from the right of the arrested person to know the basis on which his liberty has been curtailed. Where the State fails to provide that basic information, it cannot then ask the law to treat the resulting detention as though nothing constitutionally significant has occurred.
The language of Article 22(1) leaves little room for ambiguity.
It requires that a person who is arrested be informed, as soon as may be, of the grounds of arrest and guarantees them the right to consult and be defended by a lawyer of their choice. A person who does not know why he has been arrested cannot properly instruct a lawyer, challenge the basis of his custody, oppose a request for police remand or seek appropriate relief from a court.

