Musician Pete Doherty was jailed for six months at Snaresbrook Crown Court, London, yesterday after pleading guilty to possession of cocaine.

The 32-year-old was arrested in January last year by police investigating the suspected overdose death of heiress Robyn Whitehead, whose sisters live in Brighton.

Robyn, 27, the granddaughter of the late Teddy Goldsmith, spent the last 10 days of her life creating a documentary about Doherty.

Her body was found in the Hackney flat where she was doing her filming on January 24 last year.

A post mortem revealed she died of heroin poisoning.

Footage filmed on January 22 inside the flat showed her in the flat with Doherty's friend Peter Wolfe, 42, and him passing her a crack pipe, which she then smoked.

Doherty later joined them and was also filmed smoking on the crack pipe and putting crack cocaine inside it.

Wolfe was Wolfe pleaded guilty to two counts of possession of cocaine and one count of supplying cocaine to Miss Whitehead, was sentenced to a total of 12 months in prison.

Prosecutor Alison Morgan said the drugs offences for which the two men had been charged had been committed between January 22 and the day Miss Whitehead died but that the crack cocaine that Wolfe had supplied Miss Whitehead with could not have been what killed her.