Investigators in America have searched the offices of Michael Jackson's personal doctor, Dr Conrad Murray.
Officers from the Drug Enforcement Agency searched his clinic in Texas to see if he had done anything that might have caused Michael's death.
The doctor, who police say is not a suspect, was at the popstar's home and tried to revive him before he died on 25 June.
Dr Murray's spokeswoman told the BBC the search "was a surprise to us".
Dr Murray's lawyer, Edward Chernoff, confirmed that a search had been carried out.
Authorities took away a computer and some files, and are looking at them to see if he did anything wrong.
Earlier he said his client had been helping police with their inquiries.