The African slaves were able to contribute to the elements of jazz are the following: 1. rhythm - It was a trait of African music to use 'polyrhythm' or the superimposing of a single rhythm 2. Blues - it is an important characteristic of Jazz that essentially evolved from the field hollering of the slaves 3. Syncopation - is also a critical part of Jazz because it varies the duration of the same notes being played in a song. This is also done by placing emphasis on beats (strong or weak). This evolved from the call and response form used by the slaves when singing.
Exceeding the speed limit is a matter of civil law. The civil law encompasses private relations between the members of a community.
The source of this law is a combination between an statute and a regulation.
The purpose of the law is to protect peoples right to safety. This is a term established in article 3 of the Universal Declaration of Human Rights.
If this law did not exist, government officials would be failing in their duty to secure the right to safety of the citizens of this country. Citizens would be exposed to worsened conditions while being driving a car or as a pedestrian.