British songstress Amy Winehouse was arrested Wednesday in London on drug charges and subsequently released on bail, after voluntarily presenting herself at a police station. Her spokesperson says she is “cooperating fully” with authorities.

The controversy generated earlier this year by a certain video is catching up with troubled singer Amy Winehouse. She was arrested Wednesday on suspicion of drug offences and was questioned by police in East London, her rep told the BBC on Wednesday.

Winehouse’s representative explained in a statement: “Amy Winehouse voluntarily attended a London police station today by appointment. She was arrested in order to be interviewed and is co-operating fully with inquiries. The interview relates to a video handed to police earlier this year.”

The video in question was obtained by British paper The Sun in January. The paper published photos showing the 24-year-old singer allegedly smoking crack cocaine at her east London home. The video was posted on its website and allegedly showed Winehouse taking several kinds of drugs, talking incoherently and wondering around the house in a daze.

The video was supposedly filmed during a house party that took place the day before she appeared in court to support husband Blake Fielder-Civil, currently in jail facing criminal charges for assault and conspiracy to pervert the course of justice.

The Sun sent a copy of the video to British police at the time. Scotland Yard said it would investigate the video and decide whether an investigation was necessary.

Soon after the release of the video footage, Winehouse entered a rehabilitation facility. The following month, officers visited her at the clinic and she was questioned. An unnamed source revealed at the time that she was “cooperating” with police on the matter, while the Metropolitan Police said in a statement that police inquiries into the matter were “continuing.”

Winehouse left the clinic for a short period in order to apply for a visa at the US embassy. She intended to attend the Grammy Awards in Los Angeles, where she was expected to perform, as well as pick up trophies for any of her six nominations.

She did receive the visa, despite worries over a rejection generated by her legal problems, but not early enough to make it across the ocean. Winehouse ruled the Grammys long-distance, performing via satellite from a small recording studio in London and winning five awards: record and song of the year for “Rehab,” best new artist, best pop vocal album for “Back To Black” and best female pop vocal.

After the happy passing of the celebrated music awards ceremony, the Brit’s problems continued. Late last month, she spent a night in police custody in London after being cautioned for “common assault.” She was arrested on suspicion of assault, after a 38-year-old man filed a complaint to police in Kentish Town, accusing Winehouse of hitting him.

A spokesperson for the singer said that she had “slapped” a man with an open hand. She apologized for the assault.

As to the drug video issue, the singer has been released on bail until later this month pending further inquiries.

While her personal troubles seem to be getting in the way of her career, she has nevertheless managed to enter The Sunday Times Rich List 2008, with a fortune estimated at about £10 million pounds.