Section 125 of The Indian Evidence Act, 1872
1[125. Information as to commission of offences.—No Magistrate or Police officer shall be compelled to say whence he got any information as to the commission of any offence, and no Revenue officer shall be compelled to say whence he got any information as to the commission of any offence against the public revenue.1[125. Information as to commission of offences.—No Magistrate or Police officer shall be compelled to say whence he got any information as to the commission of any offence, and no Revenue officer shall be compelled to say whence he got any information as to the commission of any offence against the public revenue.” Explanation.—”Revenue officer” in this section means an officer employed in or about the business of any branch of the public revenue.