(1) The requirements for the fencing of, and the provision of other physical barriers to entry to, the airside area of a security controlled airport are:
and by inference;
(b) effective access control points to permit authorised access to the airside area; and
(1) requirements of fence? provision of barriers (gates) to ENTRY
No requirements in dimension or construction given - but it must have gates (other physical barriers) to airside.
(b) means the gate must be of a type that can open for "authorised" access.
Nothing is written to prevent access of unauthorised persons, kangaroo's, emu's or terrorists. But large signs in English let "anyone entering the area know that it is an airside area."