Ignorance of law is no excuse.
It is a Latin maxim, which means ignorance of fact can be excused but the ignorance of law cannot be excused. Every person should know the laws of the country where he lives. He cannot plead ignorance of it. Even the foreigner has to abide with the laws of the land as long as he happens to be in that country. This maxim is often used in Criminal Law.
If a person thinks that he has a right to kill a person outlawed or excommunicated wherever he meets him and does so, this is murder.But when a man intends to kill a thief or housebreaker in his own house, but he kills a member of his family, this will be considered as a mistake of fact and hence, there should be no criminal action.
place of crime
The “place of crime” is the location where injury, harm, crime, or tort is committed. In civil matters, it is the place where an alleged act of crime was done.
“It is the duty of a good judge to enlarge his jurisdiction.”
A good judge is one who enlarges his remedial authority. It is the duty of a judge to extend his jurisdiction.
A Defendant's Mental State
This maxim refers to the state of mind of the defendant who is proved to be having ulterior motives when having committed a crime. Mens réa is defined in a statute which establishes the crime or sets a precedent from time to time. The teaching of Mens rea was applied in India by courts, now that mens rea is the most important component of an offence, as firmly settled by law. In addition, the offenses resulting from the Prevention of Food Adulteration Act, Drug Acts and Weights and Measurements Act are prohibited without any evidence of guilt and the criminal shall not be liable for the offense without the proof of any guilty knowledge or intention, as it also decided by the Hon’ble Supreme Court in the case of Sarjoo Prasad v/s State of U.P