Così su due piedi sembra la legge della strada, tipo la legge della giungla, ma la maiuscola di Law svia. Davvero, dacci una frase intera!

effettivamente bisognerebbe avere maggiori informazioni in merito. In ogni caso visto il soggetto, potrebbe trattarsi di Leggi o Regolamenti che limitino l'uso del suolo pubblico per parcheggi di case mobili/caravan in alcune zone.

Spero ti sia di aiuto...

Sembrerebbe essere un programma educativo che coinvolge gli studenti in legge, i quali si recano nelle scuole per insegnare ed, attraverso sessioni interattive, fornire agli alunni nozioni circa le leggi ed il sistema legale che hanno un impatto quotidiano sulle loro vite.
(it fits!) Molto ben spiegato nei link che ti allego:
Street Law is practical, participatory education about law, democracy and human rights. First, second, third and fourth year law students team up to teach Street Law in high school classes once a week. Subjects taught include constitutional law, consumer law, landlord-tenant relations, criminal law, and mediation.

The Law School students do not receive academic credit or pay for their work. Participants range from first year students to those about to graduate. They are provided with an orientation training session, but are not supervised.

Through its philosophy and programs, Street Law empowers people to transform democratic ideals into citizen action. Street Law's programs do not end at the door of the classroom. Each student gains essential lessons that can be used for life.
https://culsnet.law.capital.edu/StreetLaw/

The purpose of the ELJ’s Street Law Program is to allow law students a unique opportunity to reach out to the community by promoting and teaching about laws and the legal profession. By exposing local schoolchildren and other community members to introductory law materials, ELJ staff members will increase public awareness and participate in meaningful public service.
http://www.law2.byu.edu/jel/index.php?page=streetlaw&subof=s...
Street Law: Juvenile Court Alternative Program - provides step-by-step lesson plans for juvenile justice professionals and teachers to provide youth with resiliency skills and practical legal information.
Street Law: A Course in Practical law (6th Edition) - uses interactive strategies to give students the knowledge they need about the laws and legal system that affect their daily lives.http://www.abanet.org/publiced/lre/dc.html

nell'ultimo link il programma viene anche citato come alternativa al/del tribunale minorile.
Per quanto concerne la traduzione, lascerei *street Law* invariato