11. The Police Commissioner may, from time to time, make such orders, not inconsistent with any provision of this Ordinance and the rules made thereunder, as he deems expedient relating to-(a) the inspection of the Force;(b) the collection and communication by police-officers of information and intelligence;(c) the description and quantity of arms, accoutrements, clothing and other necessaries to be supplied to the Force;(d) the places of residence of members of the Force;(e) the institution, management and regulation of any fund for any purpose connected with administration and welfare of the Force;(f) the duties to be performed by police-officers of different ranks and the manner in which, and the conditions subject to which, police-officers shall exercise their powers and perform their duties;(g) the efficiency and discipline of the Force;(h) the prevention of abuse of powers and neglect of duties by police-officers.