Hardin also said Watson spoke to the FBI about allegations of extortion regarding one of the 23 civil lawsuits filed against the quarterback, of which 22 are still active.
"In April, the FBI came to us and told us they were investigating a matter as to whether one of Mr. [Tony] Buzbee's clients had committed extortion in the way they were demanding money from Deshaun or what they would do if they didn't pay it," Hardin said in a news conference.
On Friday, Buzbee, who represents the women suing Watson, told the League of Justice website that the FBI met with him to discuss Watson and spoke with several plaintiffs.
"I don't think they're investigating Deshaun," Hardin said. "What they're investigating is the allegations Buzbee has made in his lawsuits. I didn't know about that until yesterday, and then I checked it out and it's true. They are."
WATCH: Full Rusty Hardin news conference on Aug. 18, 2021
Last month, Hardin told ESPN's John Barr that 10 women have filed complaints about Watson with the Houston Police Department. Eight of the women, according to Hardin, are among the 22 plaintiffs who have filed lawsuits against Watson.
Hardin said Watson has not spoken to the NFL as part of its investigation into the lawsuits.
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"The NFL regularly tries to not reach out to the defendant and his lawyers and seek evidence from them until the criminal investigation is over," Hardin said. "Historically, they want to make sure they don't interfere with the criminal investigation. I have had no contact with the NFL except to call initially and say, whenever the time is appropriate, we will fully cooperate."
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