Increase in length of jail terms, more surveillance efforts part of law-enforcement drive to keep rule-breakers at bay, officials say.

The crime previously saw tourists sentenced to jail for between six months to a year. Now, a maximum of 20 years in a Bali prison or even life sentences can be applied to those suspected of criminal violations. The latest addition to the country’s immigration laws has led to the increased surveillance of foreign nationals in Indonesia.

Aussies could spend up to 20 years in a Bali prison cell if they're found to have broken strict new laws flagged by the Indonesian Department of Immigration.