See the article I posted on this blog on the subject - It was not written by me but it is a great read about how a Western trained local politician is able to create possibly long lasting changes in a developing country. Very impressive results:

"One of Mr. Saakashvili's first steps in office was to overhaul the country's corrupt and hated traffic police. He sacked half of the force's 30,000 officers, then gave the rest a tenfold pay raise and merged them into the regular police force."