Los Angeles prosecutors want to delay the disclosure of coroner and fire department records on Michael Jackson's death to parties in a civil suit to prevent media leaks before the trial of his doctor.
The request came in a brief filed on Thursday in a case by Lloyd's of London insurance company, which is challenging a claim for 17.5 million dollars (£10.8m) by concert promoter AEG Live.
The company, which insured Jackson for his ill-fated This Is It concert, says it was not told he was taking drugs before his 2009 death.
Prosecutors say release of records including post-mortem photos of Jackson would have an impact on the involuntary manslaughter trial of Dr Conrad Murray. They say leaks of the materials to media would contaminate prospective jurors with exposure to potentially inadmissible evidence.
Murray's trial starts on September 8.