21. A member must be politically neutral in the performance of his duties.
The following in particular constitute breaches of discipline:
(a) being present in uniform at a political meeting, unless he is on duty at that place;
(b) failing to show moderation in publicly expressing his political opinions;
(c) during an electoral period, publicly expressing his political opinions, soliciting funds for a candidate for election, a party authority or a political party, or publicly expressing his support for a candidate for election or for a political party.