Prohibited free dogs

In a city of my state, the municipal government decided to put this notice, in which, by a local law, the person who abandons your pet will be sanctioned.
I warn that the sanctions to this type of faults, are not usual in my country, that is to say that this measure is quite unusual.
I have the doubt if this kind of sanctions is good or not ..... I love animals.
But I believe in freedom and individual criteria.