According to a new report, a recently uncovered police report shows reality son Josh Duggar was the “alleged offender” in a shocking underage sex abuse probe — and his own father turned him in to authorities!

Jim Bob Duggar caught Josh, then 17, leaving a young girl’s bedroom and called the authorities after he “learned something inappropriate happened.”

A source told the tabloid: “I saw and read the report and it clearly stated that Jim Bob brought his son Josh into the Arkansas State Police and spoke to a state trooper about Josh’s involvement in alleged inappropriate touching with a minor.”

According to reports, Josh was suspected of sexual assault in the fourth degree but the state trooper who took Jim Bob’s statement never followed up.

the magazine claims the officer was later convicted on child pornography charges himself and sentenced to 56 years in prison.

Eventually the Arkansas State Police alerted the Crimes Against Children Division and Springdale Police Department about the situation, but by then the three-year statute of limitations ran out and the case couldn’t be pursued any further.

“A technicality prevented any further action,” a source familiar with the case told In Touch. “That’s been the biggest regret in all of this.”

Sgt. Darrel Hignite — identified by multiple sources as the officer who led the investigation into the allegations about Josh — told the magazine: “I can’t comment or discuss [this case] because of the sensitive nature and because it involved a juvenile.”

Now 27, Josh is the executive director of FRCAction, the lobbying arm of the rabidly anti-gay Family Research Council, which works tirelessly to fight against marriage equality, hate-crimes laws, anti-bullying programs and the repeal of “Don’t Ask, Don’t Tell” policy.

I had a great meeting today with @sentedcruz. He always conveys his passion for America and the importance of advancing faith, family and freedom!

Posted by Josh & Anna Duggar on Wednesday, May 6, 2015

Duggar and his fellow FRC leaders routinely accuse LGBT people of child molestation, domestic violence and worse.

“Natural marriage is something that has been clearly defined over the years,” Duggar said at the March for Marriage in April, “Marriage is essential to the American family, and every single child deserves a mother and a father.”

At the same event, Duggar declared that “people of faith are being silenced.”

Ironically, an FRC spokesman declared in 1999 that “one of the primary goals of the homosexual rights movement is to abolish all age of consent laws and to eventually recognize pedophiles as the ‘prophets’ of a new sexual order.”

In an statement to PEOPLE, Josh Duggar, his wife Anna, and his parents Jim Bob and Michelle are speaking out in response to reports that Josh was once accused of molesting five underage girls as a teen.

“Twelve years ago, as a young teenager, I acted inexcusably for which I am extremely sorry and deeply regret. I hurt others, including my family and close friends,” Josh, 27, tells PEOPLE in a statement. “I confessed this to my parents who took several steps to help me address the situation. We spoke with the authorities where I confessed my wrongdoing, and my parents arranged for me and those affected by my actions to receive counseling. I understood that if I continued down this wrong road that I would end up ruining my life.”