Sorry, Esther, but the Palestinians do indeed have an established court system. They simply choose not to use it on Palestinians who kill Israelis. Palestinians are quick to arrest, try, and issue death sentences for anybody who aids Israeli security forces. However, any Palestinian who sends a suicide bomber to kill innocent men, women and children is simply a "hero" who they say is exercising "legitimate resistance to the occupation." It's not legitimate. It's murder (and a war crime, as Goldstone concluded) and the Palestinians encourage it. This has nothing to do with "harassing" them. They have a policy of murdering Israelis that is contrary to international and national laws. Stop making excuses for them. Instead, demand that they respect the law and stop promoting war crimes. That will also help them build their "civil systems".
Gunmen in Egypt kill guard outside Niger embassy (Reuters)
from the article: Alleged Jewish terrorist: I know God is pleased