The son of former health secretary Patricia Hewitt has been charged with possession of cocaine.
Nicholas Hewitt Birtles, whose father is Judge William Birtles, will appear in court later this month after he was charged with possession of a class A drug.
Hewitt Birtles, 21, a retail sales representative, was arrested on Saturday evening in Camden Square, north London.
He was one of two people arrested after uniformed police approached three men in a car in the square at 8.15pm and found small amounts of powder.
Both were taken to a north west London police station and Hewitt Birtles, of Rochester Square, north London, was charged and bailed yesterday morning.
A Scotland Yard spokesman said he will appear before Highbury Corner Magistrates' Court on 30 September.
A spokesman for Ms Hewitt told the Sun: "This is a private matter that the family are dealing with."
The second man, aged 22, was bailed until 6 November.
Ms Hewitt, who has been MP for Leicester West since 1997, announced in June that she intended to leave Parliament at the next election, saying she wanted to spend more time with her family.
She told the Leicester Mercury: "The truth is that after 13 years as an MP and 10 years in Government, I have not seen enough of my family.
"They have paid a high price for that."
In 2007, Judge Birtles spoke out against plans for a new pharmacy with a needle exchange programme near the family home in Camden, telling Chemist & Druggist magazine that the area had "a serious drug problem" and drug dealers operated at the end of their road.Reuse content