Bad apples in the Miami-Dade Police Department might have to watch their backs now that the county has approved a contract that will spend up to $9 million to weed out cops with a pattern of misconduct. County commissioners have unanimously approved a long-term contract with the Chicago-based Benchmark Analytics for a data management system to monitor and flag troublesome police officers before they open local government up to lawsuits. County officials say the system will help the Miami-Dade Police Department (MDPD) track officer performance issues, disciplinary history, and use of force incidents, among other markers…