The Indonesian prison system has been overcrowded for years, partially due to stringent laws governing narcotics and a focus on incarceration rather than rehabilitation for those that violate them.[4][5] Sector C (Chandiri Nengga),[6] the affected prison block, held inmates incarcerated for drug-related offenses.[3] The Class I prison in Tangerang had a capacity of 600, but was holding more than 2,000 inmates.[4] Sector C had been built to hold 38 inmates, but had held 122 at the time of the fire.[5]