Anna Nicole Smith was addicted to prescription drugs and her psychiatrist should have known it, an expert witness told a Los Angeles court.

Larry Birkhead, who gained fame in a custody battle over Anna Nicole Smith’s daughter, testified today that he regularly saw the ex-model take prescription drugs, including methadone.

Defence lawyers in the drug case surrounding the death of Anna Nicole Smith have been notified that prosecutors will file an amended complaint at a discovery hearing today.

Anna Nicole Smith’s lawyer-turned-boyfriend and two doctors denied have conspiring to provide thousands of prescription pills to the former model before her overdose death two years ago.

Anna Nicole Smith’s lawyer-turned-boyfriend was the principal enabler in a conspiracy with two doctors to provide the “known addict” thousands of prescription pills in the months before she died of an overdose, California Attorney General Jerry Brown said.

THE late Anna Nicole Smith’s boyfriend and two doctors have been charged with illegally providing the ex-Playboy model with addictive prescription drugs, two years after she died of an overdose.

Anna Nicole Smith’s boyfriend Howard K. Stern and two doctors were charged with giving thousands of prescription drugs to the former Playboy playmate in the years leading up to her 2007 fatal overdose.

Anna Nicole Smith's psychiatrist received a rude awakening on Friday morning when her home was raided by police investigating the death of the tragic model/actress.

Raids have been carried out on the US homes and offices of the doctors who prescribed drugs to former Playboy model Anna Nicole Smith, who died of an overdose.

Police investigating the death of former Playboy star Anna Nicole Smith raided homes and offices in Los Angeles today.

One doctor authorised all 11 prescription medications found in Anna Nicole Smith's hotel room, most of them in the name of the starlet's companion, according to documents released by the US medical examiner's office in Florida.