Los Angeles County Sheriff's officials said the drugs seized as authorities served a search warrant at
"You have to analyze any evidence to see what comes forward," spokesman Steve Whitmore said. "It may not be that particular narcotic."
What's more likely, Whitmore said, is that the substance is Ecstasy or Molly, a synthetic stimulant marketed as a pure form of
"Let's just wait and see, but we're fairly certain it's a controlled substance," Whitmore said.
Detectives served a felony search warrant looking for "video surveillance or other relevant evidence" after one of Bieber's neighbors reported that his house had been egged.
Sheriff's officials said the incident had been classified as a felony because the homeowner reported the value of the damage to his house at $20,000.
"I get that the eggs don't seem that significant, but it does rise to the level of a felony," Lt. Dave Thompson said Tuesday.
A dozen detectives searched Bieber's home beginning at 8 a.m., Thompson said. During the search, eight people, including the singer, were detained inside the home.
In last Thursday's incident, a neighbor called authorities to the 25000 block of Prado del Grandioso, saying someone was pelting his home with eggs. The neighbor was home with his daughter at the time and witnessed the incident. Authorities said they didn't know what might have prompted the egging.
Thompson said Bieber is a suspect in the incident.
"The investigation is ongoing. He was not arrested, nor exonerated at this time," he said.