Cannabis cross-border Germany ↔ Switzerland — the complete guide

Roughly 60,000 commuters cross the DE–CH border daily. Since CanG 2024, two legal systems meet head-on. This guide explains what's allowed.

Core rule: cannabis must never cross the border. Basel/Konstanz/Rheinfelden customs use K9 units. Over 10 g: prosecution under BetmG.

German rules (CanG)

In DE: 25 g possession, 50 g at home, 3 plants home-grow. Purchase via CSC or personal cultivation only.

Swiss rules (BetmG)

Cannabis > 1 % THC = narcotic. Up to 10 g: CHF 100 fine. Above: criminal case.

At the border

Customs can search without suspicion. Sniffer dogs alert from 0.5 g residual smell. Even an empty bag can trigger a report.

FAQ

5 g bought legally in DE — can I take it into CH?

No — BetmG Art. 19 bans import regardless of German legality.

Does CBD oil trigger a drug test?

It can — tests react to THC. Carry the invoice and lab report.

Cannabis cross-border Germany–Switzerland — 2026 guide