salesmanship rather than cheating, since bettors can counter this by informing themselves and by exercising skepticism. Doping a horse is a clear example of cheating by interfering with the instruments of the event under wager. Again, not all interference is cheating; spending money to support the health and well-being of a horse one has wagered on is not in itself generally regarded as cheating, nor is improving the morale of a sportsman one has backed by cheering for them. Generally, interference is more likely to be regarded as cheating if it diminishes the standard of a sporting competition, damages a participant, or modifies the apparatus of the event or game. In the world of gambling, knowing a secret which is not priced into the odds gives a significant advantage, which may give rise to a perception of cheating. However, legal systems do not regard secretly making use of knowledge in this way as criminal deception in itself. This is in contrast to the financial world, where people with certain categories of relationship to a company are restricted from transacting, which would constitute the crime of insider trading. This may be because of a stronger presumption of equality between investors, or it may be because a company employee who also trades in the company's stock has a conflict of interest, and has thus misrepresented himself the company. An advantage player typically uses mental, observational or technical skills to choose when and how much to bet, and neither interferes with the instruments of the game nor breaks any of its rules. Representatives of the casino industry have claimed that all advantage play is cheating, but this point of view is reflected neither among societies in general nor in legislation. , the only example anywhere of a type of advantage play being unlawful is for an advantage player to use an auxiliary device in the U.S. State of Nevada, whose legislation is uniquely influenced by large casino corporations. Nonetheless it remains a widely held principle that the law should not impose any restraint over the method by which a player arrives at a playing or betting decision from information held by him lawfully and which he is not debarred from under the rules of the game. In "hole carding", a casino player tries to catch sight of the front of cards which are dealt face-down according to the rules. One way of cheating