The IO was asked to appear before the court and explain how the accused of the murder case earlier issued confessional statements.
Justice M Enayetur Rahim and Justice Md Mostafizur Rahman's bench passed the order after hearing a review appeal filed by Advocate Md Shishir Monir on August 25.
Monir said investigation officer Shamim Al Mamun recorded confessional statements of three accused of the murder case which stated that the victim was strangulated to death after gang rape and her body was dumped in Shitalakshya River.
After 49 days, the victim returned and said she had fled with her boyfriend and was staying with her lover.
The schoolgirl went missing on July 4 and her father filed a case over the matter on July 17.
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Later, police arrested Abdullah, 22, and his friend Rakib, 19, after the victim's father filed an abduction case on August 6 accusing them.
Two days later Khalil, 36, a boatman of Bandar upazila was arrested in the case.
On August 9, police said the trio confessed to their crimes.
On August 23, the victim was found unharmed in Nabiganj area of Bandar.