The minister who conducted the service doesn't have a proper licence.

Experts say Rev Mose Henney is not registered to marry couples in Las Vegas after being forced to resign in disgrace over a sex scandal.

Henney, 67, admitted "inappropriate sexual contact, including sexual intercourse, with three adult women" at a church in Wisconsin eight years ago.

Jordan's wedding certificate is clearly signed by Henney.

But government officials say his licence to marry should have been revoked more than three years ago.

American family law experts insist ALL services by Henney, who conducted the couple's wedding at the Wynn Hotel on February 2, are now VOID.

It means Alex and Jordan's brief marriage could be over before it started.

It comes after the couple got involved in a bitter bust-up in Los Angeles over her ex Peter Andre bedding a Jordan lookalike, revealed by us last week. Bruised Alex, who has not signed a pre-nup, told friends afterwards: "I'm going to get dumped."

If they do break up, doubts over the legitimacy of the marriage could save Jordan, 31, from paying Alex any of her £30million fortune.

When the News of the World told Henney he was not registered correctly. He said: "You've got to be kidding. This is something I need to straighten out."

Married Henney moved to Las Vegas after quitting the Lutheran church in Wisconsin. He registered with the Lamb of God Church then left for the St Andrew's Lutheran Church three years ago.

BLOW: Alex and Katie in Vegas & wedding certificate

But the parish secretary at St Andrew's told the News of the World he is simply a churchgoer, NOT a registered minister. Under U.S. law, you need to be registered as a minister to carry out weddings.

Last night respected U.S. lawyer Steven Weinberg said: "Technically Jordan and Alex are not married. It is a very messy situation."

See more pics of Jordan in our racy slideshow

Peter Andre's fury over call

PETER ANDRE launched a furious attack on Jordan after she told their four-year-old son to call him a LIAR in a phone chat.

She used Junior to attack the singer for sleeping with glamour girl Maddy Ford despite saying he stayed celibate after his divorce.

Junior was speaking to Peter, pictured with him right, when mum-of-the-year nominee Jordan screamed: "Tell your dad he is a liar. Daddy's got a new girlfriend." The child, clearly upset, then told Peter, 37, that his mum had showed him articles detailing his brief fling with Maddy. He asked: "Do you have a new girlfriend, Daddy? Mummy's telling me to yell at you."

Afterwards, angry Peter hit back saying: "What a terrible thing for a mother to do. Stop trying to pollute our children's minds. You're a terrible, terrible person."

He raged: "I am sick of her using our kids to wage her battles for her." The exchange was filmed for Peter's ITV2 reality show.