Eva Rausing and her husband Hans have fought a public battle against addiction to drugs, which has scarred what should have been a comfortable, affluent lifestyle.
Hans Kristian Rausing is heir to the £5.4 billion Tetra Pak drinks carton empire and the couple live in fashionable Cadogan Place, Chelsea.
However they came to the notice of police four years ago when Mrs Rausing was caught with drugs as she tried to enter the US Embassy in London for a function.
Documents revealed that Mrs Rausing, then 44, was carrying about 10g of crack cocaine, 2.5g of heroin and 2.35g of diethylpropion, a banned stimulant and appetite suppressant.
A further drugs stash, 220mg of diazepam, used to treat anxiety, was also found in her Renault Clio car.
The couple's £5 million Georgian five-storey town house was subsequently searched.
Officers found 0.2oz (5.63g) of crack cocaine, 0.1oz (2.9g) of heroin and almost 1.8oz (52g) of cocaine.
Mrs Rausing and her husband, then 45, faced drug charges but were given conditional cautions instead, meaning the hearings did not go ahead.
Mr Rausing's parents and siblings said at the time that they were supporting the couple as they fought to overcome drug addiction.
In a statement they said: "The Rausing family are deeply saddened by Hans K's and Eva's situation, and the events leading up to their court appearance today.
"We hope with all our heart that Hans K and Eva can overcome their addiction and we continue to do what we can to help."
Mr Rausing's Swedish billionaire father, also Hans, created the Tetra Pak empire with his late brother, Gad.
The distinctive product revolutionised the packaging of milk and fruit juices worldwide.
The discreet Rausing family are one of Britain's biggest charitable donors, giving more than £150 million in the past few years, according to reports.
Mr Rausing is one of three children to Hans Rausing senior, while Eva, an American, was the daughter of a wealthy Pepsi executive.