You must give counting agents reasonable facilities for overseeing the verification and counting of the votes and provide them with relevant information.1
Counting agents are entitled to:
draw to your attention any doubtful ballot papers
disagree with a decision made by you to reject a ballot paper and you must mark that ballot paper as 'rejection objected to' / 'gwrthwynebwyd y gwrthodiad'
add their own seals when you seal the ballot boxes and envelopes if a count is suspended for any reason or there is a break in proceedings
In particular, where votes are counted by sorting the ballot papers according to party and individual candidate and then counting each set of ballot papers, the counting agents are entitled to satisfy themselves that the ballot papers are correctly sorted.2
You must also give a notice to counting agents of the time and place at which the verification and counting of votes will start.3
You may limit the number of counting agents, but in doing so must ensure that:4
the number is the same in the case of each individual candidate or political party
the number allowed must not (except in special circumstances) be less than the number obtained by dividing the number of count staff by the number of individual candidates and parties