Michael Jackson's personal doctor bought anaesthetic Propofol in Las Vegas and had it sent to Los Angeles, newly-released court papers show.

最近流传出来的法庭文件显示，迈克尔·杰克逊的私人医生在拉斯维加斯购买麻醉剂丙泊酚然后转移到洛杉矶。

Search warrant（搜索证） records show Dr Conrad Murray bought it in May at about the same time he was hired by Jackson.

The coroner（验尸官） investigating Jackson's death has ruled it was homicide, primarily caused by Propofol.

Dr Murray admits administering the drug to Jackson on the day he died - 25 June - but denies any wrongdoing.

He says he had been injecting Jackson with the drug at the singer's rented Los Angeles house each night to help him sleep.

Propofol is a powerful anaesthetic（麻醉药） normally administered to patients having surgery in hospital.

The newly-released documents were made available following a request from lawyers representing media outlets¹ including the Associated Press, the Los Angeles Times and celebrity² website TMZ.

They reveal that investigators³ found receipts in Dr Murray's Las Vegas office showing that he bought Propofol on 12 May from Applied⁴ Pharmacy⁵ Services.

Dr Murray, who has not been charged with any crimes, bought five 100ml bottles of the drug costing $853 (£515).

The Drug Enforcement Administration (DEA) said that Dr Murray, who is licensed⁶ in Nevada, California and Texas, had not broken any laws in buying Propofol in one state and administering it in another.

Dr Murray's lawyer Edward Chernoff said there were no surprises in the documents.

"The fact that Dr Murray ordered five bottles of Propofol is consistent with（一致） what he told investigators," he added.

Los Angeles police are treating Jackson's death as a homicide investigation⁷.