The report says detectives found white powdery substances and a spoon with white residue in the hotel room where she died.Complete Coverage: Death of pop diva
"Located on the south portion of the counter was a small spoon with a white crystal-like substance in it and a rolled up piece of white paper, along with other miscellaneous items," according to the report.
It does not specifically identify the substances as cocaine, although the drug was found in toxicology tests in Houston's heart and extremities.
The report released Wednesday also shows that Houston had cocaine throughout her system. Assistant Chief Coroner Ed Winter said he could not discuss how recently Houston may have used the drug.
Beverly Hills Police Lt. Mark Rosen said the investigation is still open and he could not comment on the findings.
The latest findings detail the singer's final day, with Houston complaining of a sore throat and an assistant suggesting she take a bath before preparing for a pre-Grammy party.
Houston's Feb. 11 death has been ruled as accidental drowning and coroner's officials cited heart disease and cocaine use as contributing factors.
See the full report here.