Wade Robson's allegations of child sex abuse against Michael Jackson have reportedly been disproved by his own mother in historic court documents.

Michael Jackson biographer Mike Smallcombe claims a testimony from Joy in 1993 shows at least some of Wade's allegations in the HBO documentary Leaving Neverland cannot be true.

Speaking to Mirror Online, Mr Smallcombe said the case hinged on Wade claiming the abuse started when his family went to the Grand Canyon and he stayed behind with Jacko.

But Mr Smallcombe claims his mother Joy told a court in 1993 that Wade did join them on them trip.

He points to Joy's testimony under oath as proof that Wade has lied.

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He said: "In the documentary, Wade Robson described how he and his then 10-year-old sister stayed in Jackson’s bedroom the first two nights they were ever at Neverland in January 1990.

"Wade then claimed that his family left to go to the Grand Canyon, while he stayed behind with Jackson alone at Neverland for the next five days.

"Wade claimed it was then when he was first abused by Jackson, going into graphic detail about what had allegedly happened over the course of several nights."

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Mr Smallcombe pointed to Joy's testimony in the Jodie Chandler case against Jackson in the early 90's.

The Jacko biographer continued: "His mother, Joy Robson, testified under oath in a deposition in 1993/1994 in relation to the Jordie Chandler case that Wade had actually gone with them on that trip to the Grand Canyon, before the entire family returned to Neverland for the second time the following weekend.

"Joy Robson had no reason to lie about this; she openly admitted that Wade stayed with Jackson alone on other occasions.

"She could have said, ‘Wade stayed behind with Michael when we went away to the Grand Canyon between weekends’, it wouldn’t have made a difference."

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Mr Smallcombe then went on to detail what Joy claimed happened, which goes against her son's allegations.

He continued: “Her words in that deposition were, ‘We went to the ranch for the first weekend, and then we left and went to the Grand Canyon, and we toured. We came back to the ranch for the following weekend’.

“She was asked to elaborate on who had gone to the Grand Canyon, and she said ‘my family’. There was no mention of Wade staying behind.

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“To confirm this, later on, she revealed that the first time Wade stayed alone with Jackson at the ranch without her was actually in 1993.

"She said, ‘My son has never been to the ranch without me up until this year (1993)’.”

Smallcombe added that when testifying in defence of Jackson in 2005, more than a decade after his mother’s deposition, Wade also testified that the only time he had been at Neverland without his mother was sometime in 1992 or 1993, when Macaulay Culkin and Jordie Chandler were also there.

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Mr Smallcombe continued: "When giving evidence and asked if his sister had stayed in the bed with him ‘the entire time’ they were at Neverland on that first trip, Wade answered ‘yes’.

"Meaning he never stayed alone with Jackson during that trip.

"His mum corroborated that when giving evidence the following day."

Mr Smallcombe has also pointed to Wade admitting that he 'did not know' whether what happened that night 'came from (his) own recollection or it was told to (him) by someone else’.

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Mr Smallcombe alleged: "In one email to his mother, he also asked her scores of questions about what had happened that first weekend at Neverland.

"That was when Wade was drafting a book about the alleged abuse, having failed to get the Cirque du Soleil job with the Estate.

"All of this shows that Wade’s story about being abused that first time, while the rest of his family had supposedly left the ranch to go to the Grand Canyon, is false.

"Of course, while this doesn’t categorically rule out that Jackson abused Wade Robson, it does make you wonder if this extremely detailed and key story in the documentary has been fabricated."

*Mike Smallcombe is a UK journalist and author of a biography on Michael Jackson, Making Michael.

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