Nullum crimen, nulla poena sine praevia lege poenali - There can be neither crime nor punishment unless there is a penal law first.⏎
Prout patet per recordum - "As appears in the record." Used to cite something that has already been admitted into the record. It was frequently used in pleadings, generally abbreviated "prout &c.", to indicate that a fact was supported by documentary evidence. Failure to use this phrase correctly could be a fatal defect and so cause a case to fail.[7]⏎
Non faciat malum, ut inde veniat bonum - "Not to do evil that good may come." Performing some illegal action is not excused by the fact that a positive result came therefrom. Often used to argue that some forms of expression, such as graffiti or pornographic films, cannot be given the protection of law (e.g. copyright) as they are or may be considered illegal or morally reprehensible.⏎
Pacta sunt servanda - Agreements must be kept. Contracts are the law or contracts establish obligations (between those who sign them).⏎