I may be one of the few people who takes the Engineering Council seriously within the aeronautical profession, but the EngC made it very clear when I became Chartered that anything less than a full week of relevant CT (they call it CPD - Continuous Professional Development) per year could be grounds for removal of my qualifications. I've always assumed that this applied to me, it applies to anybody working for me as well.
I know nothing about Bristows, but most places I've worked have similar views.
G