The preventive measures you have planned target a number of objectives: to focus on a respectful workplace, to improve training practices, to establish procedures to prevent harassment, and so forth.
Will one of your objectives be to gather better information on people who leave the force, to see if the facts line up? Sometimes you're too afraid to say anything when you're on the job, but when you leave the organization, you're able to speak up and say you experienced sexual harassment when you were hired or while you were working.
Will you include questions of that nature in the exit interview?