In a televised interview Wednesday, Kelly said the controversial police tactic, which many say disproportionately targets blacks and Latinos, may not be used enough, the New York Daily News reported.
"About 70 percent to 75 percent of the people described as committing violent crimes -- assault, robbery, shootings, grand larceny -- are described as being African-American," Kelly told ABC's "Nightline." "The percentage of people who are stopped is 53 percent African American. So really, African-Americans are being under-stopped in relation to the percentage of people being described as being the perpetrators of violent crime."
Meanwhile, City Council Speaker Christine Quinn continued to support a bill that would create an inspector general to oversee the NYPD, the New York Post reported.
Quinn, a mayoral candidate, said Wednesday her efforts would continue to slash the number of stop-and-frisks conducted by police officers, which were at an all-time high in 2011 with 684,000 and dropped to 525,000 in 2012.
"The [nearly] 700,000 number, which was at our height, it has gone down because of the intervention of my office and the council," Quinn said. "That's a number that is too high and clearly shows that many of those stops could not have been happening in a constitutionally sound way."