The mother of a British teenager murdered in India is returning to find out why her daughter's internal organs were taken.Scarlett Keeling's body was found on Anjuna beach in Goa in February and police initially said the 15-year-old died from accidental drowning.She was on holiday with her family, who were travelling elsewhere in the region when she was killed.Her mother Fiona MacKeown maintained Scarlett was attacked and a second post-mortem was carried out which revealed she was raped and killed. Detectives said Scarlett was given Ecstasy, cocaine and LSD on the night she died.Her body was brought back to the UK for a third post mortem examination which revealed her uterus, kidneys and stomach are missing.Mrs MacKeown said permission was never given for the entire organs to be removed and is due to arrive in Goa on Saturday evening.Her lawyer, Vikram Varma, said she will also be speaking to the Indian Central Bureau of Investigation (CBI) who are to take over the case.Mr Varma said: "We will be discussing a number of issues, mainly asking why the organs were taken."The Government has declared that you cannot take whole organs without permission."We will also be discussing the CBI case."Mrs MacKeown, 43, from Bradworthy, north Devon, has claimed that links between police officials, politicians and the drugs mafia have hampered a proper investigation.Nerlon Albuquerque, the police officer who first investigated the death, was dismissed earlier this month.They have arrested two men, Samson D'Souza, 28, who was remanded in custody on suspicion of rape, and Placido Carvalho, aged between 30 and 35, who has appeared in court on suspicion of drugging Scarlett and assisting in the murder by that act.