Table Markets-14. Price of different illicit drugs at retail level, 2002. Part (ii) Sources of information
| Country | Source | |
| Czech Republic | Police Force | |
| Denmark | National Commisioner of Police | |
| Germany | Federal Criminal Police Office | |
| Estonia | Police expert estimation | |
| Greece | Hellenic Police | |
| Spain | National Drugs Central Office, Ministry of Interior | |
| France | Trend Project, French Observatory on Drugs and Drug Addition (OFDT) | |
| Italy | Central Direction for Antidrug Services, Ministry of Interior | |
| Latvia | Organised Crime Enforcement Bureau, State Police | |
| Lithuania | Criminal Police Bureau | |
| Luxembourg | Judicial Police, Section on Narcotics | |
| Hungary | National Police Headquarters, Organized Crime Dpt, International Criminal Intelligence Service, Drug Unit | |
| Netherlands | THC monitor | |
| Portugal | Criminal Police | |
| Slovenia | Ministry of Interior | |
| Finland | Criminal Intelligence Service (NBI) | |
| Sweden | Regional Reporting System, Swedish Council for Information on Alcohol and Other Drugs (CAN) | |
| United Kingdom | National Crime Intelligence Service (NCIS) | |
| United Kingdom | Independent Drug Monitoring Unit (IDMU) | |
| Norway | Oslo Police Headquarters | |
