Sending cease-and-desist requests to offshore and illegal sports betting operators is one way regulators can try to curb that activity, but it’s not the only way.

So suggested several speakers on Monday during one of the opening panels of the Global Gaming Expo, or G2E, at the Venetian Expo in Las Vegas.

Andrew Rhodes, CEO of the U.K. Gambling Commission — which some states see as a source of insight and experience given the much more mature online gambling market overseas — said cease-and-desist letters form part of their process for addressing illegal activity.