The husband of dead millionairess Eva Rausing has been charged with preventing the lawful and decent burial of her body, Scotland Yard said.
Police discovered her body after they arrested her husband Hans Rausing - heir to the Tetra Pak billions - after stopping him on suspicion of driving under the influence of alcohol or drugs last Monday.
Mrs Rausing, one of Britain's richest women, was found dead in a bedroom of the opulent Cadogan Place house in London's Chelsea which she shared with her husband. Mr Rausing, 49, is due to appear at West London Magistrates' Court.
Police are treating the death of Mrs Rausing as "unexplained" and a post-mortem examination held last week failed to establish a formal cause of death. An inquest into the mother-of-four's death opened at Westminster Coroner's Court on Friday.
There, Det Insp Sharon Marman of the Metropolitan Police said Mr Rausing was stopped on suspicion of driving under the influence of alcohol or drugs on July 9. Officers found drugs in his car and when they searched the couple's home they discovered Mrs Rausing's body.
In a lengthy tribute, Mrs Rausing's father, Tom Kemeny, said his daughter had interrupted her own drug treatment to help Mr Rausing. He wrote: "At the time of her death her overriding concern was for the safety of her beloved husband, for whom she interrupted her own treatment to return to London in an attempt to take him back with her to California, but tragically to no avail."
Mr Kemeny described his daughter as "a beautiful, generous, and fun daughter, wife, mother, sister and aunt" and described Mr Rausing as his "son".
He wrote: "Eva and Hans Kristian adored each other and their four beautiful children. When not in London they would have family holidays with their cousins and extended family, without any glitz or glamour.
"Eva and Hans Kristian were a devoted and loving couple for the 21 years they spent together. They benefited thousands of lives through their personal involvement and philanthropic activities. They bravely battled their demons and supported each other and Eva will be a devastating loss to our beloved 'son' Hans Kristian, whom we love unconditionally with all our hearts."
The couple's drug problems have been widely reported. In 2008 they were investigated by police over drugs but the prosecution was formally discontinued. Mr Rausing, heir to a £5.4 billion fortune from his Swedish father's business, was charged with drugs offences after police found crack cocaine, cocaine and heroin during a search of his home. After lengthy discussions between his legal team and prosecutors, he accepted a conditional police caution instead.