Bounty hunting is a vestige of Common law which was created during the Middle Ages. Bounty hunters primarily draw their legal imprimatur from an 1872 Supreme Court decision, "Taylor v. Taintor". The practice historically existed in many parts of the world; however, as of the 21st century, it is found almost exclusively in most of the United States and the Philippines, as the practice is illegal under the laws of most other countries. State laws vary widely as to the legality of the practice; Illinois, Kentucky, Oregon and Wisconsin have outlawed commercial bail bonds, while Wyoming offers few (if any) regulations governing the practice.