During his lifetime, Naseef presided over several of the security apparatus’, the most prominent of which was the Internal Branch 251 which he headed between 1972-2002, and which was then succeeded by Bahjat Sulaiman (later known as the Jordanian ambassador). Naseef then became assistant to the director of the General Intelligence.
Naseef was in charge of relations with Hizbollah militias, as well as the relationship with the Iranian authorities.
He is considered among the most prominent of those responsible for crimes and violations committed in the eighties, alongside Mohammed al-Khouli (president of the air intelligence) and Ali Douba (president of military intelligence). He is also considered among those responsible for the security solution which the Syrian regime took post 2011 and till today.
Naseef was born in Shalalaat al-Laqbah, Masayif (Hama province), 1930.