What is consent and when is it required?

When a defendant admits to committing the act in question but claims it was necessary in order to avoid some greater harm the defendant's defense is? Are all laws good? Is it legal for a child to record a parent without permission? When a lawyer takes percentage what is that called? What is Constructive res judicata? Why is it illegal to manufacture fireworks without a license? What do you do when you participate in a census? Can you use a power of attorney to buy a funeral policy for your mother? How much do you have to steal to be a felony in California? Who decides if there is enough evidence to formally charge a suspect? Why was Galileo tried and sentenced to house arrest by the chatholic church? Why are pirates and ninjas enemies? Can an invalid state stute be considered as persuasive authority? What is the purpose of the senate creating committes? How do you get federal court? Can you ride a bicycle on the sidewalk in oklahoma? In a secret indictment case how much of the evidence is allowed to be presented to the defendant before they go to trial? Is it possible to settle child support out of court? How long can law enforcement keep you under surveillance? Should laws be passed protecting citizens from any overreaching legal military or police activity into privacy?