What is the initial step the adjudicating officer must take as per the Securities and Exchange Board of India (Procedure for Holding Inquiry and Imposing Penalties by Adjudicating Officer) Rules, 1995 when holding an inquiry under sections 15A, 15B, 15C, 15D, 15E, 15F, 15G, 15HA, and 15HB?

Holding of inquiry 4. (1) In holding an inquiry for the purpose of adjudging under sections 15A, 15B, 15C, 15D, 15E, 15F, 15G 1, 15HA and 15HBwhether any person has committed contraventions as specified in any of sections 15A, 15B, 15C, 15D, 15E, 15F, 15G 2, 15HA and 15HB the adjudicating officer shall, in the first instance, issue a notice to such person requiring him to show cause within such period as may be specified in the notice (being not less than fourteen days from the date of service thereof) why an inquiry should not be held against him.