Like they're so shamelessly blatant about who their reader base is nowadays I just can't
Here's the article if you want to read it I can't summon the energy 
https://web.archive.org/web/20240507210734/https://www.nytimes.com/2024/05/07/magazine/retire-early-saving.html
Most police/emergency radio systems are trunked now, requiring more complex hardware to listen in. It makes using these apps a more compelling option, even though they're charging money for(or inserting ads into) what is essentially public information.
More and more police agencies are encrypting their radios, so this will all be gone soon enough.