Published: Jun 17, 2013 12:40 PM EDT

ORLANDO, Fla. (AP) - The Orlando state attorney is asking a grand jury to investigate deadly force incidents involving the Orlando Police department.
    
State Attorney Jeff Ashton said in a letter Friday that the recent increase in deadly force encounters in central Florida "is of grave concern to this office." He will personally review cases where officers used deadly force which resulted in fatalities.
    
He also asked for an independent review by a grand jury, which he noted may be stressful for officers during the investigative process. But Ashton says it's a necessary step to maintain public confidence.
    
The review will examine all aspects of the cases, including investigative and tactical decisions.
    
Orlando police said in a statement they will fully cooperate with the investigation and the agency has faith in the justice system.

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