CHONGQING: Several organized-gang trials will begin on Monday following the massive police operation that led to the arrest of hundreds of alleged gangsters and the police officers who reportedly protected them.

"Each of these cases shares characteristics like many accused suspects, lengthy spans of crime time, multiple charges dropped and complicated proofs of crimes - meaning the trials will be very difficult," according to a statement on the Chongqing No 2 Intermediate People's Court's official website.

Other intermediate courts of the city also posted statements on their websites saying that measures had been taken to arrange enough capacity for those trials starting next week and precautions had been planned against security threats.