R KELLY - FBI EXPERT SAYS R KELLY 'SEX TAPE' IS GENUINE

FBI EXPERT SAYS R KELLY 'SEX TAPE' IS GENUINE

A forensic video expert has denied that images in the video allegedly showing R Kelly having sex with an underage girl could have been faked.

George Skaluba, a Forensic Video Examiner with the US Federal Bureau of Investigation, said he believed the tape showed "real people in a real environment", according to the Associated Press news agency.

The I Believe I Can Fly star is accused of filming himself engaging in sex acts with a girl who prosecutors say may have been as young as 13 at the time.

And after a former employee of the singer said she was "110 per cent" sure that the footage in question showed the R 'n' B hitmaker, Skaluba said the likelihood of the tape having been digitally altered was slim.

"It would be very, very time consuming and very hard to do," Skaluba said.

However, he stressed that the tape was "a copy, several generations away from the original" and said he could not say whether than man seen in the video was Kelly or a lookalike.

The trial was adjourned on Thursday after prosecutors requested more time to interview a potential defence witness before his testimony.

The as-yet-unknown man is alleged to have contacted Kelly's defence team claiming he could impeach the testimony of a prosecution witness.

Before the adjournment, video expert Grant Fredericks had shown the jury potentially incriminating freeze frames from the video.

Kelly's lawyer Samuel Adam Jr had said that while Kelly has a "significant" coin-sized mole on his back - going so far as to show the jury pictures of the singer's blemish - the man in the footage did not appear to have a mole.

However, Fredericks compared a still photo taken of Kelly's back, which showed the mole, with frames from the footage which showed a dark spot in the same position.

The trial continues.