| Belgium | | National / seizures sent to the laboratories for analysis following prosecutors' decision / analysis developed by 11 laboratories including data from "Project drugs in circulation" |
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| Bulgaria | | Local: district of Sofia / all seizures / routine analysis of seizures |
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| Czech Republic | | National / all seizures / routine analysis of seizures in some laboratories; not all analysis and all laboratories are included (permanent data collection twice per year). |
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| Germany | | National / all seizures linked to criminal investigation / routine analysis of seizures |
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| Estonia | | National / all seizures / routine analysis of seizures |
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| Ireland | | : |
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| France | | National / all seizures / monitoring system |
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| Italy | | National / seizures under a specific threshold (Latium all seizures) / routine analysis of seizures |
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| Luxembourg | | National / all seizures random sampling / monitoring system |
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| Hungary | | National / all seizures submitted for analysis of herbal cannabis over 8 g / resin seizures of over 25 g / routine analysis of seizures: THC content means only free THC without THC acid. |
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| Malta | | National / random sample of police and customs seizures / monitoring system |
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| Netherlands | | National / user's level: random test purchases in coffee shops / monitoring system |
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| Austria | | National / seizures under a specific threshold / Seizures when suspicion about the substance / test purchases at street level / routine analysis of seizures |
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| Poland | | National / not all seizures (includes material from cultivations) / routine analysis of seizures |
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| Portugal | | National / random selected sample of seizures of under 1 g / routine analysis of seizures |
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| Romania | | National / sampling of all cases (retail or large) for which the authorities requested the potency analysis according UNODC best practice manual; High Performance Liquid Chromatography (HPLC) to quantify THC, CBD and CBN / routine analysis of seizures |
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| Slovenia | | National / all seizures: random selection / routine analysis of seizures |
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| Slovakia | | National / all seizures / routine analysis of seizures |
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| Finland | | National / THC purity is measured only when herbal cannabis sample amount is >150 g and the purity test is specially requested / monitoring system |
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| Sweden | | National / seizures made by the police / Data is collected continuously throughout the year |
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| United Kingdom | | National (England and Wales) / seizures, from street-level users when issuing a warning, submitted for analysis to their usual forensic provider by 23 Police Forces participated / ad-hoc study |
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| Croatia | | National / all seizures / routine analysis of seizures |
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| Turkey | | National / seizures sent to the laboratories for analysis due judicial or law enforcement needs |
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| Norway | | National / all seizures / routine analysis of seizures |
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