What is the common law "right" of a state to protect its own interests?

When a judge refers to "common sense, common-sense, popular parlance" or "common-sense", does this mean that the judge must be able to rely solely on common sense or common- sense? (California, United States of America)

Does the privity rule apply to bind those who succeed to an interest in property where rights in the interest have been litigated to judgment by a predecessor in interest? (California, United States of America)

Is a child a compelling state interest that a state has not a duty to protect? (California, United States of America)

Does the state have a compelling state interest in protecting society from dangerous persons? (California, United States of America)

How does the prosecution in a civil case establish that there is a connection between a group of individuals with a common name, common identifying symbols and a common enemy? (California, United States of America)

Does a minor have a constitutional privacy right to refuse to report to child protective agencies of a suspected violation of section 288 of the California Child Protection Act? (California, United States of America)

Is an invasion of privacy a violation of the state constitutional right to privacy if the invasion is justified by a competing interest? (California, United States of America)

What is the test for a "compelling state interest" to restrict access to a person's fundamental human rights? (California, United States of America)

Is there a constitutional right to seek and enforce a right of equal protection and due process? (California, United States of America)

What is the state's sovereign right to protect the general welfare of the people? (California, United States of America)