Paragraph 55 Attendance at allocation of seats
The GLRO must make arrangements for making the allocation of seats in the presence of the election agents of the individual candidates (including, in the case of a list candidate, the election agent for that list), and he must give to those agents notice in writing of the time and place at which he will begin the allocation.
No person other than—
the GLRO and his clerks,
the CROs and a clerk or technical assistant chosen by each of them,
the individual candidates and one person chosen by each of them,
candidates included on a party list and one person chosen by each of them,
the election agents,
the nominating officers of those registered parties standing nominated at the election,
persons who are entitled to attend by virtue of any of sections 6A to 6D of the 2000 Act,
persons permitted to be present at the central calculation at the election of the Mayor of London,
may be present at an allocation, unless permitted by the GLRO to attend.
A person not entitled to attend an allocation must not be permitted to do so by the GLRO unless the GLRO—
is satisfied that the efficiency of the allocation will not be impeded, and
has either consulted the election agents or thought it impracticable to do so.