Section 13 (1) of the I.T.P Act are the only officers under the State Government, having the power to conduct the raid, search, arrest of the accused, investigation and the filing of the final report. Of course, the 'trafficking Police Officers' appointed by the Central Government under sub-section (4) of Section 13 of the I.T.P. Act shall exercise all the powers and discharge all the functions as are exercisable by special police officers under I.T.P. Act, with the modification that they shall exercise such powers and discharge such functions in relation to the whole of India. Sub section (3) of Section 13 of the I.T.P. Act provides that the Special Police Officer is to be assisted, for the efficient discharge of his 'functions in relation to offences' under the I.T.P. Act, by a number of subordinate police officers and will be advised by a nonofficial advisory body. The Apex Court in Delhi Administration (supra) held that the expression 'functions in relation to offence' in Section 13(3) of the I.T.P. Act includes his functions connected with the investigation of the offences. The Apex Court further held in Delhi