Poisons Act 1971

The responsible licensing authority may, by verbal or written notice to the licence holder, immediately suspend a licence if the responsible licensing authority is satisfied that – there is a high risk of a substance or plant to which the licence relates being diverted for illicit purposes; or if the licence continues in force there is likely to be an imminent risk of harm to the public.

If verbal notice of the suspension of a licence is given to a licence holder, the responsible licensing authority must, as soon as practicable, confirm the suspension by written notice to the licence holder.