You would have to ask over what time period. You would have to ask which categories and which officers have asked for police certificates. You're assuming that police certificates are the be-all and end-all. In the case of the individuals in question, and in the context of a police investigation, I'm not going to speak further, but you could imagine how unreliable those certificates would be where they have been required.
On May 27th, 2024. See this statement in context.