On the website Askyourcouncil.co.uk it says:
‘There are rules about who is permitted to join a committee or sub-committee.
Sometimes non-councillors can be included (although with few exceptions, they cannot vote).
This is an excellent means of involving others, particularly young people, in council work.’
Unfortunately, it offers explanation of these 'rules' or where they might be found, not does it explain the process for inviting someone on to a committee.
As chair of a committee (eg Planning), that is not the Full Council meeting, can I invite someone to participate in the meeting (non-voting) and how does one achieve this?