Following support from Heydar Aliyev, then leader of Azerbaijan, the police school became an Academy on May 23, 1992, and now resides in Baku, providing training for personnel of the Ministry of Internal Affairs and the National Police Force, as well as offering training programs for foreign organisations on request. Applicants for full or part-time education in the Academy are given a number of criteria by the police force which must be met before they can be successful. These criteria include physical characteristics (height and fitness) and academic (secondary school graduates, knowledged of literature, history, geography and languages). Successful students who graduate the five-year course are awarded qualifications in law and a promotion to lieutenant in the police force. Azerbaijan's Ministry of Internal Affairs' three-month analysis in 2006 illustrated that Azerbaijan suffers from extensive narcotics-related crime (one crime from every five criminal events is related to narcotics). The MIA's figures state that this drug trafficking across Azerbaijan's borders is a significant problem, and led to the creation of the National Program for Combating Drug Abuse, Illegal Traffic in Narcotic Drugs, Psychotropic Substances and Precursors. Azerbaijan is a party to a number of United Nations anti-drug-trafficking conventions from the years of 1961, 1971 and 1988, however the MIA states that it fails to intercept 90% of drugs that cross the border, and recorded 10965 drug-related cases from 2000 to 2004, seizing 747 kg of narcotics, as well as 10,000 tablets and more than 3,000 ampoules of psychotropic substances. 1221 cultivations of illicit substances, and 2000 tons of cannabis were also destroyed in the same period. Despite the growing drugs problem, from 1993 to 2004 Azerbaijan enjoyed an overall drop from 246 to 185 crimes per 100,000 of the population which is a drop of 18145 to 16810 recorded crimes, and a rise from 79.5% to 94.2% in the number of cases solved. Murders in Azerbaijan decreased from 478 to 201 per 100,000 and thefts from 4943 to 1775 per 100,000. Theft of motor vehicles and firearms crimes also dropped in a similar manner, however robbery increased from 216 to 672 per 100,000 through the period. Azerbaijan experienced a major shooting spree on April 30, 2009, when either one or two gunmen entered the Azerbaijan State Oil Academy, killing 13 and injuring another 13.