NEW YORK — The stunning indictment that led to the arrest of more than 30 people, including Miami Heat guard Terry Rozier and other NBA figures, on charges of illegal sports betting has drawn new scrutiny of the booming business of professional sports gambling across the U.S.

What You Need To Know

The stunning indictment that led to the arrest of more than 30 people has drawn new scrutiny on the country's booming sports betting business

The multibillion-dollar industry has made it easy for sports fans — and even some players — to wager on everything from the outcome of games to that of a single play with just a few taps of a cellphone

But regulating the rapidly-growing industry has proven to be a challenge

Professional sports leagues’ own role in promoting gambling has also raised eye

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