Just to make sure I understand, I would like to run a quick check of the following scenario based on my understanding of the answers. Clearly, I'm a designated public office holder, and I do from time to time meet with people, with different associations and people and parties that are interested and classify themselves as lobbyists. When I do meet with them, I typically take their meeting with me at face value. Mainly, they have registered, as required, as you said a few minutes ago, and I have to log the intervention I had with them.
If in fact they were not registered and had not logged the interaction, that error or omission is on them. Am I correct to assume that?