Absolutely, and there is a lot that isn't talked about because it's not in the public interest. Every week there are drug related shootings in all the big cities cross the UK, when did you last hear of one? You didn't. This is because it's (awful police term) a "scum on scum" killing and nobody not concerned with the trade of illegal drugs needs to know. The police don't much care because one dead drug dealer is one fewer piece of sh*t to arrest. If they allowed the press to report them all there would be a public outcry at the levels of violence. So they don't. It's only when it spills over into the wider population, such as in the awful case of the murder of Olivia Korbel-Pratt, the little girl in Liverpool, not so long ago, by a gunman who was trying to murder another drug dealer and couldn't shoot straight.. But I believe media reporting strategies and public perception of crime levels are linked, despite the truth of the matter.
So yes, there is "management" of the public perception. I suspect that the current fear of crime directed against children is driven by media attention, largely because gruesome stories sell papers (or these days clicks) and it's probably in the public interest to have children at home wrapped in cotton wool. I know, from the stories I hear, that the "scum on scum" killings are suppressed.