According to Sebastien Pietrasanta, cited by the Belga news agency, if the Belgian side entered the information that Abdeslam was an Islamic extremist who posed danger, he would have been detained without delay.
Following the terrorist attacks, French gendarmes stopped a car carrying Abdeslam at the French-Belgian border but did not detain him.
The French parliamentary commission is expected to present the results of its investigation into the November 13 terrorist attacks in Paris on Tuesday.
The series of terrorist attacks carried out across Paris on November 13 claimed 130 lives and injured over 350 people. Abdeslam is believed to have provided logistical support to the suicide bombers and shooters. He was charged with terrorism-related offenses in April.