Detectives investigating the party death of a schoolgirl at a lecturer's house have charged him with drug possession.
Isobel Reilly, 15, died after going into cardiac arrest at 61-year-old Brian Dodgeon's west London home in April.
Dodgeon has been charged with five counts of possession, including the party drugs ecstasy, LSD and ketamine, Scotland Yard said.
He is also accused of keeping diazepam and psychedelic drug 5-MeO-DIPT - better known as Foxy Methoxy.
Police said Dodgeon, of Barlby Road, north Kensington, will appear at West London Magistrates' Court on Monday.
An inquest was opened and adjourned in May while the University of London research fellow was on police bail.
Dodgeon's 14-year-old daughter and two 14-year-old boys were also detained in hospital after the party.
The lecturer, whose research subjects have included health inequalities and alcohol consumption patterns, has been suspended from his job on full pay.
Isobel lived on Ramsay Road, South Acton, with her father, Patrick Reilly.