Over the last hundred years, violent crime has droped sharply worldwide.
Over the last twenty years, it has fallen alot in developed countries such as Western Europe, North America, Japan and South Korea.
In the United Kingdom, both violent and property crime have gone down in the past two decades. The main exception is fraud, scams and cybercrime, which have increased.
Overall, crime, especially violent crime, is far lower now than it used to be.
So why does it not feel that way? Mostly because we are floded with news about every incident. It sticks in our heads and makes us beleive things are worse than they are. It is like air travel: whenever there is a major crash, the headlines fill up with every minor incident, even though flying has never been safer than it is today.
This is less about criminality and more about control.
There's definitely an argument to be made that things have gotten safer because we have more surveillance, but that argument also has many valid counter-arguments, and giving away your freedom for absolute law and order isn't the way to go in my opinion, especially when you use narratives like "crime in DC is at an all time high" like we've seen in the USA lately which is false. https://www.justice.gov/usao-dc/pr/violent-crime-dc-hits-30-...
A balance of surveillance and freedom is necessary for a healthy society. (By surveillance in this context, I mean simple things like CCTVs, police patrols, not necessarily drag-nets, face rec, whatever mind you).