Prosecution

Prosecution is the formal process by which a government authority initiates and pursues criminal charges against a person accused of a drug-related offense. It is distinct from arrest — police carry out arrests; a separate arm of the state, the prosecuting authority, decides whether and how to proceed.

The prosecuting body varies by system: district attorneys and US attorneys in the United States, the Crown Prosecution Service in England and Wales, a procurator fiscal in Scotland, and so on. In federal systems, a single alleged offense may be eligible for prosecution at more than one level of government simultaneously.

What it means in practice

Prosecution is not automatic after arrest. Prosecuting authorities exercise discretion — they weigh the strength of the evidence, the seriousness of the alleged offense, and current enforcement priorities before deciding whether to bring charges.

Drug offenses are typically charged in categories that carry very different legal weight: simple possession, possession with intent to supply, supply or distribution, importation, and manufacture. The category charged, and whether the case proceeds at a local or federal level, often shapes the legal exposure more than the substance itself.

Many jurisdictions maintain diversion programs — drug courts, deferred prosecution agreements, or treatment referrals — that allow eligible individuals to avoid a criminal conviction by completing court-set conditions. Eligibility is usually tied to the nature of the offense, the quantity involved, and prior history.

How jurisdictions vary

The threshold for prosecution varies widely across legal systems and within them. In the United States, cannabis remains a Schedule I controlled substance under federal law, but federal prosecution for simple personal possession is rare; most cases proceed at the state level, and in jurisdictions that have regulated adult use they may not proceed at all.

Portugal decriminalized personal possession of all controlled substances in 2001. Possession below a defined personal-use threshold is handled through administrative dissuasion commissions, not criminal courts; supply and trafficking remain criminal offenses subject to prosecution.

In the Netherlands, a formal tolerance policy — gedoogbeleid — deprioritizes prosecution of small-scale cannabis sale through licensed outlets, even though cannabis remains prohibited by statute. The policy illustrates that prosecution is shaped by political priorities as much as by the written law.

Scope and currency

This entry describes prosecution as a general legal concept. It is not legal advice and does not describe the law applicable to any specific reader or situation. Criminal law varies substantially by country, region, and time; enforcement priorities can shift without any change to the underlying statute.

The position stated here reflects the state of drug law as of August 2026. For jurisdiction-specific information about a particular substance, consult the Legal Status section on that substance's page — it carries its own jurisdiction, date, and source, and is the value to rely on rather than this page.