Here’s a real police notice. But it seems to have been designed by someone not terribly used to doing these things. Look at the random capitalisation and the Tolkienesque “Help us catch them all”. And what on earth is “total policing”? What a meaningless phrase! A line at the bottom of the poster informs us that this operation is called “Operation Withern”. What do we need to know that for?
Sadly, we will see more and more of this sort of thing as the design of public notices falls more and more to people with limited command of the language and little idea of how to communicate.