At the FAAM Asbestos Conference 2019, Jon Cooper of Womble Bond Dickinson (UK) LLP did a presentation called “Consultants and the Criminal Law – How are they caught?” – rather worryingly one of his conclusions was that if a consultant is aware of bad practice from a client (to the extent that the client is potentially breaching legislation), and the consultant does not report this then they definitely incur some liability.
I remember the presentation because it came after I’d asked what I thought was an ethical question about whether a consultant should report a client. The solicitor had no idea I’d posed the question, but it turned out that, for his point of view, the legal position was clear.
I’m not sure how much this helps! (I’ve looked for the presentation, but I can’t find it at the moment)