American Apparel is baring its dirty legal laundry against its ousted chief executive, Dov Charney.

In a court filing answering Charney’s defamation suit against the company and its chairwoman, Colleen Brown, the company disclosed the sordid details of a six-month independent probe that resulted in Charney’s firing last year — an investigation that Charney claims was not independent and for which he sued the company.

The latest legal salvo — known as an Anti-SLAPP (Strategic Lawsuits Against Public Participation) motion, which addresses First Amendment rights — says Brown did nothing wrong in telling the retailer’s employees in an April 24 letter that Charney had been fired “for cause” and “was not suitable to return to the company as CEO, an executive or an employee.”

Charney sued Brown and the retailer in May, alleging defamation.

According to the filing, American Apparel recovered “voluminous evidence” from Charney’s company computers and devices showing that he had sexual liaisons with employees and models, exchanged “pornographic explicit e-mails, text messages” and took “videos and photographs” of these encounters using company property. The Anti-SLAPP motion asks the court to dismiss Charney’s defamation complaint.

“The company has knowledge that much of this information and allegations are completely false,” said Charney’s lawyer, Keith Fink.