In the least we need better surveillance of public spaces and facial recognition for (limited) use when a crime is involved. If criminals aren’t brought to justice and don’t face consequences, there is no deterrent and they’ll perform more crimes and bigger crimes. It is why BART escalated from isolated crimes to an entire train being raided by 50-60 robbers with no arrests (https://www.cbsnews.com/news/bart-robbery-oakland-teens-stor...).