The HC bench of Justice M Enayetur Rahim and Justice Md Mostafizur Rahman issued the summons order.
Senior Judicial Magistrate Mainul Islam has been asked to explain the matter on October 8 after appearing before the court.
Barriester Ruhul Kuddus Kajol, who stood for the accused, said that the judge recorded confessional statements of the three accused within three hours on June 28, 2018 and without giving them adequate time which is violation of the relevant rules.
School student Antor was strangulated to death on June 7, 2018 after abduction.
Two accused in the case- Azizul Sheikh and Ashraf Sheikh- were denied bail in the murder case now pending with Woman and Children Repression Tribunal of Faridpur.
Three accused including the two filed a petition with the High Court against the tribunal’s order.
After hearing the arguments, the HC bench summoned the senior judicial magistrate for his explanation over the issue, and kept the appeal pending for hearing till October 8.