Cambodia’s arrest of alleged scam centre kingpin Chen Zhi and his extradition to China is “not the end” of the Southeast Asian nation’s battle to stamp out transborder crimes, its foreign minister said. Last week’s surprise arrest of Chinese-born Chen is a key step in an until now fragmented international campaign targeting sophisticated scam networks in Southeast Asia run by criminal gangs, swindling victims worldwide out of billions of dollars. The extradition of Chen, sanctioned by several...