| Country | | Sampling frame / Type of study |
|---|
| Belgium | | Small seizures (mostly at user's level) / judicial cases analysed in the framework of the project 'Composition of Drugs in circulation'. |
| Bulgaria | | All seizures / routine analysis of seizures. |
| Czech Republic | | All seizures (analysed in Prague and 3 out of 7 regional police laboratories) / routine analysis of seizures. |
| Denmark | | User's level / monitoring system. |
| Germany | | All seizures / routine analysis of seizures. |
| Estonia | | All seizures / routine analysis of seizures. |
| Greece | | All seizures, except for heroin and cocaine only quantities larger than 500 gr / routine analysis of seizures. |
| France-A | | All seizures / routine analysis of seizures. |
| France-B | | All seizures / routine analysis of seizures. |
| Latvia | | All seizures by the police if the substance was confiscated from a known person / routine analysis of seizures. |
| Lithuania | | All seizures / routine analysis of seizures. |
| Luxembourg | | All seizures / routine analysis of seizures. |
| Hungary | | All seizures submitted for analysis of over: 0,7 g for amphetamine; 10 units for ecstasy and less than 100 g for "street level" powders / routine analysis of seizures. |
| Malta | | All seizures / routine analysis of seizures. |
| The Netherlands-A | | User's level: samples supplied by potencial users to care institutions / monitoring system. |
| The Netherlands-B | | User's level: seizures by security at discotheques and clubs / monitoring system. |
| Poland | | All seizures for which samples of over 5 grams are sent to the laboratory / routine analysis of seizures. |
| Portugal | | All seizures / routine analysis of seizures. |
| Slovakia | | All seizures / routine analysis of seizures. |
| Finland-A | | All seizures submitted for analysis with of 0,5 g to 10 g / Ad-hoc study: Street-level amphetamine purity. |
| Finland-B | | All seizures tested in the Customs Laboratory over 5 g / routine analysis of seizures. |
| UK (England and Wales) | | All seizures, purchases / routine analysis of seizures. |
| Turkey | | All seizures: random selection / routine analysis of seizures. |
