Murdrum was introduced into English law

English law

English law is the legal system of England and Wales, and is the basis of common law legal systems used in most Commonwealth countries and the United States except Louisiana...

 by the Danes. Being the killing of a man in a secret manner, it is distinguished from simple homicide

Homicide

Homicide refers to the act of a human killing another human. Murder, for example, is a type of homicide. It can also describe a person who has committed such an act, though this use is rare in modern English...

. In the Laws of Canute an unknown man who was killed was presumed to be a Dane, and the vill

Vill

Vill is a term used in English history to describe a land unit which might otherwise be described as a parish, manor or tithing.The term is used in the period immediately after the Norman conquest and into the late medieval. Land units in Domesday are frequently referred to as vills, although the...

 was compelled to pay 40 marks for his death. After the Norman conquest the law was revived in respect of the Norman

Norman dynasty

Norman dynasty is the usual designation for the family that were the Dukes of Normandy and the English monarchs which immediately followed the Norman conquest and lasted until the Plantagenet dynasty came to power in 1154. It included Rollo and his descendants, and from William the Conqueror and...

 aristocracy

Aristocracy

Aristocracy , is a form of government in which a few elite citizens rule. The term derives from the Greek aristokratia, meaning "rule of the best". In origin in Ancient Greece, it was conceived of as rule by the best qualified citizens, and contrasted with monarchy...

. It was abolished in the reign of Edward III

Edward III of England

Edward III was King of England from 1327 until his death and is noted for his military success. Restoring royal authority after the disastrous reign of his father, Edward II, Edward III went on to transform the Kingdom of England into one of the most formidable military powers in Europe...

. Richard I of England

Richard I of England

Richard I was King of England from 6 July 1189 until his death. He also ruled as Duke of Normandy, Duke of Aquitaine, Duke of Gascony, Lord of Cyprus, Count of Anjou, Count of Maine, Count of Nantes, and Overlord of Brittany at various times during the same period...

 exempted the Knights Templar

Knights Templar

The Poor Fellow-Soldiers of Christ and of the Temple of Solomon , commonly known as the Knights Templar, the Order of the Temple or simply as Templars, were among the most famous of the Western Christian military orders...

 from being charged with murdrum and Latrocinium

Latrocinium

Latrocinium which meant primarily a mercenary, or hired soldier, had the same meaning as miles. Latrocinium applied to a war that was not preceded by a declaration of war under the Roman laws; it was also applied to the guerrilla warfare used by the enemies of Rome...

 amongst other privileges.

When king Henry I

Henry I of England

Henry I was the fourth son of William I of England. He succeeded his elder brother William II as King of England in 1100 and defeated his eldest brother, Robert Curthose, to become Duke of Normandy in 1106...

 granted tax liberties to London

London

London is the capital city of :England and the :United Kingdom, the largest metropolitan area in the United Kingdom, and the largest urban zone in the European Union by most measures. Located on the River Thames, London has been a major settlement for two millennia, its history going back to its...

 in 1133, he exempted the city from taxes such as scot, danegeld

Danegeld

The Danegeld was a tax raised to pay tribute to the Viking raiders to save a land from being ravaged. It was called the geld or gafol in eleventh-century sources; the term Danegeld did not appear until the early twelfth century...

, and murdrum.