 Though economic offences/tax evasion were initially covered under the reasons for interception of phones, the same was withdrawn in 1999 by the Government based on a Supreme Court order citing protection to privacy of the individual.As per Rule 428 of the India telegraphic rules, no person without the sanction of the telegraph authority, use any telephone or cause or suffer it to be used, purposes other than the establishment of local or trunk calls.The Government of India instructions provide for approved attachments.