How many seriously harmed children or murdered children did they want Leon to have to find/deal with/try and resuscitate over his actually rather quite short (about 70 eps) tenure?
Poor darling, especially after the tragic death of his girlfriend (that Leon being Leon, he got called to the scene of!)
"What's that caller? You've a traumatic and haunting thing happening where a young child/vulnerable teen has been hurt and could die/requires CPR/is crying out for help?? It's ok, we'll send our most sensitive, brooding officer who has already dealt with 5 of these sorts of cases this week to your house."