Os nove principios de "public engagement" enquanto teoria sócio-política defendida pela Universidade de Newcastle:
1. Participants should join those organising the process in setting terms of reference for the whole exercise, and framing the questions that they will discuss.
2. The group organising, or in overall control of, the process should be broad based, including stakeholders with different interests on the subject being discussed.
3. There should be a diversity of information sources and perspectives available to participants.
4. There should be space for the perspectives of those participants who lack specialist knowledge of the area concerned to engage in a two-way exchange with those possessing specialist knowledge.
5. There should be complete transparency of the activities carried out within the process to those both inside and outside it.
6. Those without a voice in policy-making should be enabled to use the consultation process as a tool for positive political change. This should be embedded in the process by sufficient funds being made available for follow-up work after their initial conclusions have been reached.
7. The process should contain safeguards against decision-makers using a process to legitimise existing assumptions or policies.
8. All groups involved in the process should be given the opportunity to identify possible strategies for longer-term learning, development and change on a range of issues relating to their conclusions.
9. The group organising, or in overall control of, the process should develop an audit trail through the process, to explain whether policies were changed, what was taken into account, what criteria were applied when weighing up the evidence from the process, and therefore how the views of those involved in the participatory process may have made a difference. This should be explored together will as many those involved in all levels of the process as possible.