MIAMI (AP) — A handful of Miami Beach police officers sent hundreds of racially offensive and pornographic emails and possibly jeopardized dozens of criminal cases in which they are witnesses, the department's chief said Thursday. Because sometimes, you have to tell her more than once. Rundle added that criminal charges are possible if any minors are depicted in the pornographic images. Other police departments have recently uncovered officers involved with offensive emails, images and videos, including earlier this year in Fort Lauderdale when four officers were fired over racial videos and texts. The cases come amid a national debate about issues of race and law enforcement, including several instances of unarmed black men killed by police.