This is the final Policing Matters podcast segment of 2019. With what is sure to be a tumultuous 2020 about to commence, Jim and Doug reflect on some of the topics that rose above the rest in the past 12 months, including police officer suicide, the impact of California's AB-392 on the use of force and officer safety, active shooter response during some of this year's tragedies, the use of facial recognition software and artificial intelligence, ongoing anti-police sentiment — and the opposing force of police supporters — as well as the use of CBD oils, and the impact of legal marijuana on recruiting.