Definition: Generate an appropriate title for the given text. The generated title must be short and include the main topic of the text. The preferred titles are under fifteen words.
Input: The scam was uncovered during a four-year investigation, after shoes made in China with the contaminated plastic were found on sale in Italy. Police say 15 people were held on a range of offences, including extortion and waste trafficking. Among them was alleged ringleader Claudio Carbonaro. He had been a police witness at one stage, but in 2013 returned to Sicily and took over a feared Mafia syndicate. He then entered the highly lucrative trade in toxic plastics. Claudio Carbonaro was "responsible for atrocious crimes in the 1980-90s, including over 60 murders", Italian police told news agency AFP. Thursday's arrests were made in and around the Sicilian city of Ragusa.

Italian police bust 'Mafia plastic recycling ring'