Coleen Rooney reportedly carried out a "dummy run" before launching her Wagatha Christie molehunt.
In court documents obtained by The Sun, it reveals the lengths Coleen, 35, went to as she tried to identify who was leaking the stories from her inner circle.
It's claimed Coleen - who is married to Wayne Rooney - started her operation back in January 2019 after a series of personal stories were leaked to the press.
The doting mum-of-five eventually realised her private Instagram account was the source, and sifted her way through 300 accounts of "trusted friends and family" in a bid to draw up a list of possible suspects.
Coleen invented fake posts which were "interspersed with true or mundane ones" to give the impression her Instagram account was running normally.
All but five of the posts were seen by Jamie Vardy's wife Becky.
Becky is suing Coleen for libel after she was publicly accused by Coleen of betraying her trust in her now infamous Instagram post.
And as part of their court battle, the documents detail the five exceptions and also two dummy posts, which ran in April 2019.
Coleen claims the dummy posts were seen by Becky and one other person - but she says she could not recall the identity of the other individual.
Another of the posts was seen by former Manchester United midfielder, Tom Cleverley, while two others were seen by unidentified individuals.
According to the documents, none of the posts were leaked to the press.
"This led to her belief that it was the Claimant who was responsible for the leak, given her established history and habitual practice of providing private information to journalists and the Press," the court document reads.
"The Defendant had also heard rumours that the Claimant was responsible for similar leaks or disclosure of private information from other so-called WAGS or celebrities."
The Mirror has contacted Coleen's representative for a comment.
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