The document summarizes key aspects of Chapter 20 from a civics textbook. It discusses the meaning and origins of due process under the 5th and 14th Amendments, including substantive and procedural due process. It describes police powers that allow states to promote health, safety, morals and general welfare. It also covers the constitutional right to privacy established in Griswold v. Connecticut. The summary discusses rights of the accused such as habeas corpus, speedy and public trials, trial by jury, rights to an adequate defense and not self-incriminating.