Most would argue that Asian crime is difficult to investigat

Most would argue that Asian crime is difficult to investigate and even harder to prosecute offenders

Solution

It is true for most Asian economies.

In many such countries, the legal system is inadequate. First, the police and investigating system suffers from corruption and political interference, hindering the acting of police to investigate a crime. And even after a criminal is apprehended, the legal system is flawed, biased and/or slow to ensure fast and/or proper prosecution to such offenders.