Diprivan, a powerful sedative, has been found in the home where Michael Jackson suffered a fatal cardiac arrest, a US law enforcement official has said. But the questions has been raised, as many things in Jackson’s death, that has this been placed there and by who?

Powerful Sedative Found In Jackson’s Home Enlarge photo The drug is an intravenous anesthetic widely used in hospitals to induce unconsciousness in patients before operations.

It is also administered to terminally ill patients who are in pain or who have just days to live.

Other prescription drugs have been found in Jackson’s Holmby Hills home since the star died on June 25.

Officials have previously said they think the singer was addicted to the pain killers Demerol and OxyContin.

They also revealed the singer received an injection of Demerol shortly before he died.

Meanwhile at a news conference in Los Angeles, it has been announced that 17,500 tickets will be on offer to fans who want to attend Jackson’s public memorial.

The event will take place next Tuesday next week at 10am local time at Los Angeles’ Staples Centre.

Tim Leiweke, president, CEO of AEG Live, which owns the Staples Centre and was Jackson’s promoter, said fans will have to enter a draw to be randomly selected.

People who want to be in with a chance of getting a ticket must register at Staplescenter.com, but the website says only US citizens may apply.

Mr Leiweke said for those fans who miss out on tickets, the memorial will be broadcast around the world via a video feed.

Los Angeles city officials said ticket-less fans would be barred from the area surrounding the venue.

They gave no details about where Jackson would be buried or what Tuesday’s order of service would include.

In another development, it has emerged that Jackson’s promoter AEG took out a $17.5m (?10.7m) insurance policy in the event of the singer’s 50 London gigs falling through.

TMZ.com said AEG’s chief executive Randy Phillips revealed that the policy covered an overdose but not death from natural causes.

However a spokesperson at Lloyd’s of London told us that she has never heard of a insurance policy case where her company has insured someone for a drug overdose.