Dr Conrad Murray, the man who was prosecuted for the death of Michael Jackson, is launching an appeal against his sentencing. According to the Los Angeles Times, Murray has asked an appellate court to order a lab test on a key piece of evidence in the original trial. Murray is currently serving a four year sentence, though he is expected to be in county jail for two years, following a state-wide "prison realignment."

The piece of evidence in question - Exhibit 30 - was a disputed piece of evidence in last year's trial; a drug vial taken from Jacko's bedroom at the time of his death. The 100 millilitre bottle apparently had Murray's fingerprints on it. This led prosecutors to theorise that the vial had contained the dose of surgical anesthetic propofol that killed Jackson on June 25, 2009. It was alleged that the doctor had mixed the anaesthetic with a small amount of another anaesthetic drug, named lidocaine, before attaching the vial to an intravenous drip and leaving Jackson unattended. However, at the time the chemical residue inside the vial was never tested.

Conrad Murray's defence lawyers have claimed that the vial was actually in a rubbish bag and was not related to Michael's death. They have claimed instead that the pop singer injected himself with propofol from a syringe, when the doctor was not looking. Murray's legal team have apparently claimed that they had not originally grasped the need for the vial to be tested, until the prosecution expert testified at the end of the seven week trial. Previous appeals to have the vial tested have been rejected.