[expat]

Warning somebody about speed cameras is preventing people from committing
a crime you are doing a public service, I warn people but sometimes I am choosy who I warn If it looks like a hoon with the baseball cap on back to front I just smile has they go past, fair enough put speed cameras in appropriate places ie outside schools and hospitals I would not warn anybody then, they deserve to get pinged,but over here it,s more about revenue raising.