A major forensic report into Russian tycoon Boris Borozevsky's death found no evidence of poisoning or radiation, an inquest has heard.
Peter Bedford referred to a 22-page report submitted by forensic scientist Raymond Fysh, which detailed tests for poisoning including radiation and found no evidence of any.
A statement read out earlier by forensic scientist Sarah Tarrant said toxicology tests found traces of various prescription medicines in Mr Berezovsky's system, although it was not possible to tell when they had been taken or in what quantity.
Ms Tarrant also said she "couldn't rule out the possibility that he had ingested morphine or possibly even heroin", though the latter could have come in the form of poppy seeds found in food and herbal teas.
More top news
Climate change protests and the visit of Donald Trump make headlines.
Pressure is growing on the PM to name the date of her departure from No 10 amid frustration over the latest Brexit delays.
Lyra McKee will be laid to rest in Carnmoney cemetery after a service at St Anne’s Cathedral Belfast.