The charges followed a speech Khan gave in Islamabad last month in which he vowed to sue the chief of Islamabad police and a junior judge, and alleged that Shehbaz Gill, his chief of staff, had been tortured and subjected to sexual abuse after his arrest.
On Monday, a two-judge bench, comprising Chief Justice Athar Minallah and Justice Saman Rafat Imtiaz, announced the verdict on a request made by the party to quash the case.
Prosecutor Raja Rizwan Abbasi told the court the police investigation found that Khan’s remarks were “threatening” and, therefore, terrorism charges were applicable to the politician.
However, defence lawyer Salman Safdar argued the statements were about taking legal action against the judge and the police chief.
The chief justice observed that provisions of terrorism were misused in the past, referring to the 2018 case of former senator Faisal Raza Abidi of the Pakistan Peoples Party (PPP), who was acquitted of the charges the following year.
Critics of the Anti-Terrorism Act, 1997 say the law helps security forces skirt constitutional protections for defendants while governments also used it for political purposes.