Does Security section belong to HR department ? If not which dept. ?

Security Section is Operations and Management responsibility. I'm delivering functions etc. For HR this is for all Policies; hire purposes; and work functions roles and contracts etc. And making sure that all Security information for Audit purposes is passed on to Management Security so that information can be passed down to the Operations front line work staff.

the security department should always be a department of its own. thus it should report to the chief executive officer to avoid unnecessary hiccups and red carpets

Security team should always be a standalone dept reporting directly to the CEO....In corporates, all SVPs or EVPs' focus is on enabling business, therefore, while enabling business, Security shall take a back seat....

yes