13.Yet another aspect that could be relevant in the circumstances of the present case, is the status of a person being accused or charged for criminal offences. One of the cardinal principles of criminal jurisprudence is the principle of presumption of innocence. The general principle is that a person accused of a criminal offence is presumed to be innocent until he is proved to be guilty has been reiterated in various judgments of the Apex court as well as the High Courts. The right of a person to move in and out of the country is a personal liberty protected under Article 21 of the Constitution of India. The requirement of natural justice is implicit in Article 21. While a person's personal liberty is protected under the Constitution of India, when such a person is yet to be proved guilty of a criminal offence, the passport authorities deriving their powers under Section 10(3)(e) of the Indian Passports Act, 1967, which is only directory in nature may not be justified in arbitrarily invoking the provision for impounding or attempting to impound or revoking the passport on the ground that the criminal case is pending.