Question

the least powerful types of laws are

Answer 1

The least powerful types of laws are the Local Ordinances. The local ordinances are  laws that govern the behavior of citizens who reside in a specific city or town. They are the least powerful laws because carry lesser punishments and what is more important they may be overridden by either state or federal law. 

Answer 2

The least powerful types of laws are appointed laws. Laws that are not voted on by citizens may not be taken seriously and people may not abide by them. Laws that are voted upon are more likely to be supported by the population.