Florida’s Democratic congressional delegation sent a letter to the state’s attorney general today expressing concern over the handling of the Trayvon Martin slaying and asking for a “comprehensive briefing” of the investigation.

Rep. Alcee Hastings led the delegation letter to Pam Bondi that included Frederica Wilson, Ted Deutch, Kathy Castor, Corrine Brown and Debbie Wasserman Schultz. The attorney general was in Washington this week for the healthcare mandate challenge before the Supreme Court.

“We remain troubled that this incident occurred on February 26, 2012, and yet Mr. George Zimmerman has not been arrested,” the letter states. “As members of the Florida Congressional delegation, we request that you keep us apprised of your findings, and provide us with a comprehensive briefing at the conclusion of your investigation.”

The lawmakers tell Bondi that they have “grave concern” over the case and are pleased to see a new state attorney investigating the case and a task force to weigh the results.

“We cannot let the standard of our judicial process be overlooked in this matter,” the delegation writes. “As you know, there are a number of laws, decisions, and procedures involved in both what happened to Mr. Martin, and the subsequent actions of the Sanford Police Department. We sincerely hope that your office will do everything in its power to find answers as to what went wrong in order to prevent an incident like this from happening in the future.”