The physical security force usually patrols the casino and responds to calls for assistance and reports of suspicious or definite criminal activity. Web-based online casinos (also known as flash casinos) are websites where users may play casino games without downloadingsoftware to their local computer. The creation and importance of saloons was greatly influenced by four major cities: New Orleans,. Bonus hunting Bonus hunting (also known as bonus bagging or bonus whoring ) is a type of advantage gambling where turning a profit from casino, sportsbook and poker room bonus situations is mathematically possible. Archived from the original on November 23, 2015. For example, the house edge in blackjack is roughly.5. Non-cashable bonuses Non-cashable bonuses may be called "sticky" or "phantom" bonuses. When implemented correctly, a prng algorithm such as the Mersenne Twister will ensure that the games are both fair and unpredictable. Comp points Main article: Comps (casino) Comps are commonly available at land-based casinos, but also exist online. The Venetian Macao is currently the largest casino in the world. In 2014, the UK government put into law the Gambling Act of 2014 which in addition to the original 2005 law, required offshore online gambling operators catering to UK players to obtain a UK license.