One of the biggest problems of law enforcement today is that people take drugs or drink and then get behind the wheel of a large automobile. Where politics has failed, technology will succeed, and self-driving cars are the ultimate answer to the problems besetting law enforcement. If there are no drivers, then there is no need for quite so many police, and no need for chases. Every vehicle can have a "kill switch" installed if the vehicle ever becomes a problem. Whether stupid people drink or not, their cars can get them to where they are going. The police will then be confined to foot patrol, investigators and S.W.A.T. teams, resulting in a reduction of their manpower and significant savings to the taxpayer.
At any rate, there will be no jobs in the future, because robots are going to do just about everything, including driving. In a low-employment future, where so many of our current professions have become fully automated by robots, people will be willing to die for a job, and only the best of the best will be selected for a nice salaried job with benefits, such as a police officer. The top 1% will become police officers, while the vast majority will be unemployed, selling their organs or bodies in order to make a living.
My guess is that the vast hordes of the unemployed will become bandits, stealing and pillaging to make a living, and law enforcement will then need to be robotized. Vast armies of machines will fly about killing bandits and composting their bodies for agriculture. Mass-production of the flying killers will be necessary in order to reduce the human population by 99.99%. For the super-rich, this is all about forging a wonderful paradise for themselves and their future genetically-enhanced generations of godlike beings. After all, our ancestors did give Neanderthals short shrift. We cannot expect easier treatment, now, can we?