According to the investigations, around 30 Mexican citizens received fake identification documents about 10 years ago and one of those individuals could have been the Mexican drug lord.
Guzmán's extradition to face charges in the United States was discussed on Tuesday at a meeting in Miami between Arely Gómez, Mexico's attorney general, and Justice officials.
Rolling Stone magazine published an interview with drug lord Joaquín "El Chapo" Guzmán conducted by actors Sean Penn and Kate del Castillo.
An important aspect which helped locate him was discovering Guzmán's intention to have a biographical film made. He contacted actresses and producers, which was part of one line of investigation.
The Mexican attorney general spoke at a ceremony Friday night at Mexico City's airport where Mexican marines displayed Guzmán to journalists.
Edgar Valdez Villareal was a top lieutenant and hit man for Arturo Beltrán Leyva and also led a group of killers responsible for murders carried out by the drug trafficking organization.
Security Minister Sergio Berni says authorities received information that 'El Chapo' tried to cross the Chilean-Argentine border.
The suspects include a man considered the mastermind of the escape, the capo's brother-in-law and an airplane pilot.
The search for the world's most wanted drug lord has focused in recent weeks on a rugged area that stretches from Sinaloa into neighboring Durango state.
Officials think the drug lord injured a leg and his face in evading capture.