The court also sought record of profiles of all employees of the bureau.
The bench remarked that Civil Services Act cannot be by passed in appointments of officers.
The court remarked that as per NAB Ordinance, the chairman enjoys authority which even the prime minister does not enjoy.
The court also remarked that officers on deputation cannot be merged in NAB otherwise seniority of people would be effected.
The three-member bench of the apex court headed by Justice Amir Hani Muslim heard the case.
During the course of proceedings, Special Prosecutor NAB Imran ul Haq submitted report regarding six army officers including Squadron Leader Tariq Mahmood Nadeem Acting DG NAB Multan, Major (retd) Shahzad Saleem Acting DG NAB Peshawar, Major (retd) Burhan Ali Acting DG NAB Lahore, Major (retd) Shabbir Ahmed Acting DG NAB Karachi, Major (retd) Tariq Mahmood Malik DG Quetta and Colonel (retd) Siraj ul Naeem.
The court after reviewing the report remarked that appointments matter was not covered in the report and asked according to which law these appointments were made.
He said that all appointments were made on the recommendations and approval of Chairman NAB which is the discretionary power of the chairman.
Justice Qazi Faez Isa asked whether posts were advertised or not.
Ashtar Ausaf Ali Attorney General for Pakistan appeared before the court and informed that appointments were made on different positions and it was a sensitive matter.
The court asked the AGP to assist in the case and adjourned hearing of the case till date in office.