David Cameron to raise concerns over Neil Heywood's death in China "We welcome the investigation that is ongoing and we look forward to seeing the outcome of that," Mr Cameron's spokeswoman said. By raising the case so publicly, the British government hopes to put pressure on the Chinese authorities to investigate Mr Heywood's death thoroughly. Suspicions linger over whether his case is being used to smear Mr Bo, and the details of the case that have emerged so far have raised as many questions as they have answered. Ministers also want to counter allegations they have been slow to raise concerns about the Briton's death, which was initially described by the Chinese authorities as not suspicious. "We're not sitting on our hands here - we are pushing hard for this be fully investigated," said a British Government source. Mr Heywood died in a Chongqing hotel room on November 14 and was cremated four days later. The Chinese initially said he had drunk himself to death, but it is now widely believed that he was poisoned. William Hague, the Foreign Secretary, will also brief MPs about the case and the state of the investigation. He is likely to face questions about Britain's initial response to Mr Heywood's death, after it emerged that Jeremy Browne, a Foreign Office minister was in Chongqing days after the businessman died. Jeremy Browne, also met Bo in the city on November 17, three days after Mr Heywood died. Downing Street said that Mr Browne was not informed of Mr Heywood's death at the time. Britain only asked China for an investigation of the death in February. Sir Menzies Campbell, the former Lib Dem leader, suggested that Britain had been slow in questioning the initial Chinese explanation of Mr Heywood's death. "There is a British businessman with what were well-known high-level political and commercial connections who dies suddenly in a hotel bedroom and is cremated almost immediately," he told BBC Radio 4. I would have thought those circumstances would at the very least have triggered an inquiry as to whether or not all of that explanation was credible. Mr Cameron's meeting with Mr Li today has fuelled allegations that Britain is trying to curry favour with the Chinese regime for commercial gain.