Egypt's interim President Adly Mansour announced on Sunday that he had urged the prosecutor-general to look into the status of those being detained pending investigation, university students in particular.
After investigations have been finalised, those proven to be innocent will be released, Mansour added.
During a meeting with Mansour last Wednesday, youth activists complained about revolutionaries being defamed and arbitrarily arrested.
Mansour denied any systematic police violence. He also requested a list of those allegedly arrested randomly without charge.
Protests on university campuses have been taking place since the beginning of the academic year in September, but have increased since the beginning of the exam period in December.
Students opposed to the interim authorities and in support of ousted president Mohamed Morsi have launched demonstrations and called for an exam boycott.
Clashes have led to many deaths. Hundreds of students have been arrested inside and outside campuses in addition to the thousands of people arrested in a broad crackdown on Brotherhood members and their sympathisers.