"The imprisonment of 1,605 people detained in 2008 on the basis of positive drug tests in Georgia cost $4.7 million, and overall costs for imprisonment in the country continue to surge in response to new, punitive policies. In the past few years the prison population has increased four-fold (from 6,000 to 24,000)86."

Source

Merkinaite, S. A war against people who use drugs: the costs. Eurasian Harm Reduction Network (EHRN): Vilnius, Lithuania, 2012.