I agree with most replies. Gambling doesnt cause an increase in crime. It can be linked to crime in some areas but the other way around. Crime tries to get into the gambling industry to launder money.
Also think about nowadays. Do you think online gambling from home causes an increase in crimes? Not at all.
Yes,online games nothing related to crimes unless gambling is fully banned in your country.Even the gambling is not related to crimes in most places other than the casinos run but the criminals which also the place where drugs are available.But it maybe causes some crimes because of the people who needs money for gambling due to their addiction level when they get into some stage they do anything for the money which is needed for their gambling activities.
Mostly criminal are also gamblers and gamblers are also criminals. When a gambler loses money in gambling he will do some illegal to get some money to continue his gambling. I think that gambling is the mother of crimes. Gamblers gradually become professional criminals and even commit murder for their money. Snatching, looting is their normal routine.
I think not all gamblers are prone in making crimes.There are gamblers who still have good thinking not to commit crimes because that will definitely ruin their whole lives.Even if you're not a gambler and you're facing lot of financial problems in life,you can still commit crimes if you really want to.Being greedy and does not fear God is mostly the sources of crime.