In that case the police should investigate and then rightfully conclude there is no danger and leave the child alone to continue walking in the street. After th

In that case the police should investigate and then rightfully conclude there is no danger and leave the child alone to continue walking in the street. After that they should arrest the caller for exaggerating (i.e. lying) regardless of their claimed intentions. This assume some sort of rationality in our legal bureaucracy of course. Unfortunately that doesn’t seem to exist.