With the exception of the media, I don't think you could draw a consistent chronology for any of these things across the last 30-40 years of moral panic over children's safety. US crime rates, for example, are markedly lower than they were in the 1990s, and we probably spend more on the police now as well.
The last decade statistics disagree. Country wide there is a reduction but within the some big cities it has increased significantly.
"On average, violent crime has climbed by 12 percent in U.S. cities, while property crime has declined by 33 percent since 2010. Robbery rates fell in the average U.S. city by 23 percent, while murder, rape, and aggravated assault all climbed by 25 percent or more."
Scroll down on that link and check out the crime change over the last decade "2010-2020 change".
It does look like a handful of cities are really really bad and may be skewing things.
