A Macau triad boss known as "Broken Tooth" has walked free from jail after serving more than 14 years behind bars for heading a gang blamed for a string of murders and bombings in the former Portuguese colony.

The release of Wan Kuok-koi on Saturday has triggered tightened security in the world's biggest gaming hub, although experts say it is unlikely Macau will witness a return to the violence seen before the city returned to Chinese rule in 1999.

Al Jazeera’s Caroline Malone reports.

Source: Al Jazeera