We have reported that male students have begun filing lawsuits related to gender discrimination and libel against their schools, based on an questionable sex crime charges and flawed investigations conducted by kangaroo campus courts.

Now, a male professor is initiating a similar lawsuit of his own, based on his own experiences with “campus justice.”

Philosophy Prof. Peter Ludlow is suing Northwestern and top University officials for defamation, gender discrimination and invasion of privacy.

The University acted “with malice and with reckless indifference” toward Ludlow’s rights under Title IX of the Education Amendments of 1972, according to the suit. Ludlow names University President Morton Schapiro and an NU graduate student as defendants in the suit, which was filed Wednesday.

In addition to his allegations against NU, Ludlow denies reports that he had non-consensual sex with a philosophy graduate student while they were in a relationship.

Ludlow is raising his concerns in the wake of a different Title IX lawsuit filed in February against the University by a rising Medill senior. The Medill student alleges that NU acted with “deliberate indifference and retaliation” after she reported that Ludlow sexually assaulted her in 2012. The student’s report spurred an internal investigation that found Ludlow in violation of NU’s sexual misconduct policy. Ludlow called this investigation “flawed and one-sided” and has denied the student’s allegations.

Ludlow’s suit reveals that the University also investigated Ludlow after a philosophy graduate student lodged a complaint in March that Ludlow had non-consensual sex with her. The pair had “a consensual romantic relationship” from about October 2011 to January 2012, according to Ludlow’s suit.

He is alleging that the graduate student, along with philosophy Prof. Jennifer Lackey and director of NU’s Sexual Harassment Prevention Office Joan Slavin, who are also named in the suit, defamed him in statements they made during a third-party investigation into the student’s allegations.