Bayan horo a fim a IDHEC a 1959, Lahlou ta yi karatun ilimin zamantakewa a Sorbonne . Ya shirya gajerun fina-finai da yawa a cikin shekarun 1960. Daga nan sai ya shiga CCM (cibiyar fina-finai ta kasa), inda ya yi aiki a matsayin edita da furodusa don gajerun fina-fakka. Ya shiga cikin kudade na Souheil Benbarka's La guerre du pétrole n'aura pas lieu . jagoranci fina-finai da yawa a cikin shekarun da suka gabata.[8]