There are very few actors, who keep it extremely perfect for their character on the film, Aamir Khan is one such actor.
For his upcoming film Talaash, Aamir took special care of his character inspector Shekhawat. The actor apparently took help of night patrolling cops to prepare for his role.
According to source, "Almost all of the major scenes have been shot during the night. Since the shooting would take place after sunset, there would be cops on the sets. Aamir often chatted with them asking details about their work and enquiry about the places that they would visit often."
Another Source adds, "Night seems to be a key player in the film's storyline. The idea of making this film had also stemmed from an incident involving cops that was witnessed by Zoya andReema who then wrote this project."
Source - times of india