NEW YORK, Nov. 30 (Xinhua) -- The New York Police Department has taken a closer look at its undercover operations following Saturday's fatal police shooting of 23-year-old Sean Bell.

    Several high ranking police officials and a member of New York Criminal Justice Services will spearhead a committee which will scrutinize undercover training and recruitment and the controversial rule that does not require undercover officers to take a breathalyser test while on duty.

    Commissioner Ray Kelly said the decision to create the new panel does not imply the officers fired 50 bullets at Bell's car did anything wrong, but he expressed hope that it will clarify procedures used by undercover officers.

    "Obviously questions have arisen concerning our undercover procedures," said Kelly. "I want to take a fresh look at it, clean sheet of paper, examination of it. We have undercover operations in several of our bureaus and we want to make sure our procedures are appropriate, that our policies are appropriate and I think these are the right people to do that."

    Witnesses have reportedly been able to identify the "fourth man" police said was seen walking with Bell and his friends to their car moments before they were shot by police. According to police sources, two witnesses picked the man out of two separate photo lineups.

    Police officials believed that the man may have been with Bell and his friends in the strip club where Bell was having his bachelor party, and may have run off with a weapon. No gun was found on Bell or his friends after the shooting.

    Police are also looking for two other potential witnesses: a man dressed in black who was seen arguing with Bell outside the club, and another man in a beige jacket who witnesses said was seen running away as the shooting started.

    Meanwhile, investigators remain on the scene of the shooting to look for the weapon police may have seen the night of the shooting. Police alleged early on in the investigation that they believed one of the men was going for a weapon and that was what prompted their shooting.

    One of Bell's two friends also shot Saturday morning spoke Wednesday for the first time since the incident.

    Joseph Guzman, 31, remains in critical condition at Mary Immaculate Hospital, where he is recovering from his injuries. He was the more seriously injured of the two friends.

    The third man shot by police, Trent Benefield, is still recovering as well.