By Stephen M. Silverman
Updated December 09, 2003 01:00 PM

Authorities in Los Angeles previously cleared Michael Jackson of sexual allegations involving the same boy currently making claims against the singer in a Santa Barbara criminal case, according to an internal government memo uncovered by the Smoking Gun Web site.

During an investigation last February, the minor “denied any form of sexual abuse” and said he never “slept in the same bed as the entertainer” when questioned by a social worker allied with the Sensitive Case Unit of L.A.’s Department of Children and Family Services, according to the memo.

The investigation concluded that the sexual allegations against Jackson were “unfounded,” reports the Smoking Gun, whose editor, Bill Bastone, tells ABC News that he informed Santa Barbara investigators of the document before releasing it on his Web site. (Bastone did not say how he obtained the memo.)

“They were very surprised and basically said California law does not allow them to comment on any degree of the investigation,” Bastone said Tuesday on “Good Morning America.” “They essentially confirmed that the document is real as we already knew but beyond that they couldn’t talk about it, which is what we expected.”

Santa Barbara authorities arrested the pop star on multiple counts of child molestation on Nov. 20. He posted $3 million bail and is still awaiting formal charges.

Santa Barbara appears to be building its case on the claims of a 14-year-old cancer patient, who alleges that the entertainer sexually abused him during visits to Jackson’s Neverland Ranch two years ago. Jackson, though his attorney, has labeled the allegations “a big lie.”

In the confidential document, the boy’s mother is quoted as saying that “her children are never left alone with the entertainer,” and that while “her son has slept in the same room as the entertainer … they did not share a bed. The entertainer would sleep on the floor.”