A reckless conduct is much more than mere negligence. It is a gross deviation, according to Black's Law Dictionary 9th Edition at Page 1385, from what a reasonable person would do. The passage from J. W. Cecil: Kenny's Outlines of Criminal Law (16th Edition, 1952) reproduced in Black's Law Dictionary says it thus:
Intention cannot exist without foresight, but foresight can exist without intention for a man may forsee the possible or even probable consequences of his conduct and yet not desire them to occur, none the less if he persists on his course he knowingly runs the risk of bringing about the unwished result. To describe the state of mind the word "reckless" is the most appropriate. The words "rash" and "rashness" have been used to indicate the same attitude.
The degree of fault in recklessness is much greater than that in negligence; it is though of lesser degree in terms of fault than an intentional wrong doing. It therefore lies between negligence and an intentional act or wrong doing. A reckless act goes to the level or a degree of high carelessness. Thus in Salmond on the Law of Torts. 17th Edition, 1977 at page 194, recklessness "is the doing of something which infact involves a grave risk to others, whether the doer realises it or not. The test is therefore objective and not subjective." The test is also one of facts.
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Recklessness
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On The Distinction Between Recklessness And Negligence