Lord Monson threatens to sue Kenyan government over death of son in custody He said: "From what I understand there are some good people in government and they must be given their opportunity and their chance to carry out investigations and to carry out a proper inquest. In the event that I see no movement on this, I will of course bring a private prosecution. I will of course work with the local media and I will work with human rights organisations. I will not stop. Alexander Monson shortly before his death Lord Monson confirmed his willingness to sue the Kenyan government amid an apparent continued failure by local police to investigate his son's death. Alexander Monson was arrested outside a Diani nightclub at 2am on June 19 and charged with possession of cannabis. He was taken to the town's police station in good health but was rushed unconscious the following morning to hospital, where he died. A post-mortem showed the City University graduate had suffered massive internal bleeding and had a blood clot on the brain. Yesterday Lord Monson accused the police of murdering his son In an interview at a hotel during which he sat beside his former wife, Mr Monson's mother Hilary, 58, he said the family was angry that officers had blamed the death of drugs. He said: "I've had no contact with the police and have been asked by a lawyer not to have any contact with police. I'm slightly bemused. I had hoped the police might have come to see me to express their condolences and their sorrow, even if they were going to be persisting in this ridiculous story that they have been putting out that he died of drugs. We all know this not to be true, they know it not to be true. And yet even when we have the post-mortem report they continue with this pack of lies. He added: "I cannot tell you how distressed the family are. If the police who committed this crime had been honest and had not delayed in taking Alexander to hospital, Alexander might still be alive. They are guilty of a beating up, they are guilty of being dishonest to medical staff and moreover they have smeared my son's name. Am I angry about this? Well, you can imagine. I'm the father of a murdered son. Family and friends held a tribute to Mr Monson on Saturday at Diani beach. The service started at 5.10pm, exactly one week after he died while handcuffed to a hospital bed. Alexander Monson with his mother in Kenya It emerged today that human rights campaigners in Kenya were planning a mass protest over the tragedy. Francis Auma, of the campaign group Muslims for Human Rights, said more than 2,000 local people would take to the streets this week to demonstrate against the police. He said: "We want the police to come clean regarding what led to the death of the tourist. We feel police are moving very slowly and that is why we are planning a major protest if they do not give an official report in the next three days. Police bosses at the weekend said they had launched a dedicated task team to investigate the tragedy. Ambrose Munyasia, head of Kenya's coastal area force, said detectives would probe what caused Mr Munson's death. He said: "We are gathering evidence to establish how the tourist died. We have postmortem report which has indicated the suspect died of some injuries, and that is why we are moving with speed to establish what happened.