The Secret Service has now launched an investigation to track down how the substance got there and who was responsible for the breach.
United States President, Joe Biden, his son Hunter Biden and members of the first family arrived back at the White House amidst controversy on Tuesday after cocaine was found in the White House by Secret Service agents.
A dispatch call reviewed by DailyMail reveals a preliminary test found that the white powder discovered on Sunday tested positive for cocaine and led to emergency services shutting down 1600 Pennsylvania Avenue.
The Secret Service has now launched an investigation to track down how the substance got there and who was responsible for the breach.
The discovery came two days after recovering drug addict Hunter, 52, was last seen at the White House as he headed to Camp David with his father for the long holiday weekend, Mail Online reports.
Trolls are speculating that the president's addict son is the source of the illegal substance.
However, the White House library is part of the public tour experienced by hundreds daily, meaning there could be multiple suspects. It is also two floors below the first family's living quarters.
While the dispatch recording clearly says 'library,' a source familiar with the incident told Daily Mail that the substance was not found inside the executive mansion but was discovered in a 'work area' in the west wing of the White House.
A Secret Service statement confirms this.
“On Sunday evening, the White House complex went into a precautionary closure as officers from the Secret Service Uniformed Division investigated an unknown item found inside a work area,” the statement reads.
“The DC Fire Department was called to evaluate and quickly determined the item to be non-hazardous,” it continues.
“The item was sent for further evaluation and an investigation into the cause and manner of how it entered the White House is pending.”
Hunter arrived back in Washington, D.C. on Tuesday for the annual Independence Day celebration on the South Lawn. In tow was his wife Melissa Cohen and their son, Beau, 3, who was crying as his father carried him to the car at Fort McNair to head back to the White House.
U.S. Secret Service is conducting further testing to confirm if the substance is an illegal drug.
He also said that President Joe Biden was not in the executive mansion when the substance was discovered.
Authorities are investigating how the cocaine got into the White House.