Law enforcers picked up Dr Anwarul at the mazar gate of the High Court at around noon, Md Moniruzzaman, officer-in-charge of Dhanmondi Police Station told The Daily Star.
The rest three were detained at the hospital at about 2:30pm, he said.
Earlier in the day, the HC directed police to take appropriate action against the concerned Ibn Sina officials, doctors and nurses under Criminal Procedure Code (CrPC) in connection with death of the infant.
One Idris Sikder recently filed the case with Dhanmondi Police Station on August 24 after his newborn baby died on August 9 due to negligence of the hospital authorities.
The HC passed the order during hearing a suo moto rule it had earlier issued against the Ibn Sina Hospital authorities following a report published by a private television channel.
On August 15, Boishakhi reported that the three new-born babies died due to negligence of the hospital authorities, and even the doctors held the bodies of the three new born babies for three days denying their parents’ access to them.
The court on August 17 issued the suo moto rule upon the hospital officials and doctors to explain why they should not be punished for their negligence in saving the children.
An HC bench Thursday also directed Sultan Mahmud and Tajul Islam, two officials of Ibn Sina Hospital, to appear before it on October 16 to explain about their filing a general diary against Idris Sikder and their alleged offering bribe to the reporter concerned of Boishakhi television.
The bench of Justice AHM Shamsuddin Chowdhury Manik and Justice Gobinda Chandra Tagore ordered the police to submit a report to the court by October 10 on compliance of its directives.
The bench also ordered the police to provide security to Idris Sikder and his family and the Mahbub Alam Lavlu, reporter of Boishakhi television.
AC of Dhanmondi Circle Sharifur Rahman and OC of Dhanmondi Police Station Moniruzzaman, Idris Sikder and Lavlu appeared before the HC bench Thursday as per its August 23 order.
The HC on August 23 sought the wealth statement of Ibn Sina Hospital by October 9 to examine whether it is involved in corruption.