Civil laws regarding kashrut (Jewish religious standards, mainly concerning food) are found in several countries.
For example, in some places the law may require that a rabbi certify the kashrut nature, in others the rules of kosher are fully defined in law, and in others still it is sufficient that the manufacturer only believes that the product complies with Jewish dietary regulations.
In several cases, laws restricting the use of the term "kosher" have later been determined to be illegal religious interference.
[1] Historically, the statutes of some states in the United States[2] attempted to define the term "kosher", and make it a felony to sell a product which was called kosher if, in general, it was not processed in accordance with the Jewish religion.
The legal rulings include: See also, The Constitutional Complexity of Kosher Food Laws[9]