(1)Each district, other than Belfast, shall be a police district.
(2)In the district of Belfast there shall be such number of police districts (not exceeding 4), as may be determined by the Chief Constable; and each such police district shall consist of such area as may be so determined.
(3)For each police district the Chief Constable shall designate as district commander a police officer of the required rank.
(4)In any statutory provision—
(a)for any reference to a police sub-division there shall be substituted a reference to a police district established under this section;
(b)for any reference to a sub-divisional commander there shall be substituted a reference to a district commander designated under this section.
(5)“Required rank” means a rank not less than that of chief inspector.