Kevin Rudd, former Australian Prime Minister, at a press conference of "The Party and the World Dialogue 2015" event in Beijing on Tuesday. [Photo by Wu Yan/Chinadaily.com.cn]

The result, though noticeable, requires more international efforts. Many participants in the Dialogue pointed out that differences between countries are obstacles when it comes to dealing with extradition of fugitive officials.

"Some efforts should be made in China and the US, or in the West, to deal with the issue of incompatibilities between the two systems," said Christopher K.Johnson, Freeman Chair in China Studies at Center for Strategic and International Studies, in the US, in a panel discussion focusing on international anti-corruption cooperation.

Citing an example, he said "there is no institution in the West similar to CCDI to be able to negotiate on this sort of matters."

Kevin Rudd also acknowledges such a problem, especially in different legal systems between countries.

"International legal cooperation between law enforcement agencies in respective countries and legal system in these countries should be on highest level. When we face global problems, such as corruption, money laundering, people smuggling and human trafficking, they require global solution and global cooperation, including legal cooperation," said Rudd.

To make international cooperation smoother, China has made efforts in adjusting its institutional system.

A central level work unit on hunting down fugitives and retrieving illegal outflow of assets and a report system on information of fugitive officials have been established, and an anti-corruption law enforcement cooperation mechanism targeting havens such as the US, Canada and Australia is an improvement, said Huang Shuxian.

"China has had a fruitful result in anti-corruption endeavor despite many challenges," said Rudd. "Fighting corruption is a continuous process."