Some anecdotes:
I've personally been mugged at gunpoint in Oakland. I luckily managed to hold on to my cellphone and called 911 right away. The police showed up right away, but only cared to take a statement and left without going after the perpetrators, or even giving us a ride to somewhere safe.
The only other time I called 911 because a woman collapsed on the street in front of me. She was bleeding from the head and making a scary-looking pool of blood. It took 45min for an ambulance to show up, in downtown San Francisco, around noon on a weekend day (no traffic).
The authorities are entirely useless and unreliable.
It's almost as if the article is equating less crime being prosecuted as less crime existing. There's a big issue with that.
I feel like we need much tougher police that actually prevents and prosecutes all types of crime, including rampant petty theft, car break-ins, muggings, shootings (which are common), harassment by deranged drug-addicts all over the streets, etc. etc.