Stopped by French police with CBD: what the test can't tell
If you are stopped on foot in France with CBD flowers or resin, officers may test the product on the spot and, if in doubt, seize it and send it to a laboratory. Their colour test cannot read the legal limit of 0.30% THC, which only a lab analysis measures. Since 20 August 2026 the 500 € fine has applied to drug use; compliant CBD falls outside it.
Key takeaways
- In France, hemp flower or resin is legal up to 0.30% Δ⁹-THC.
- Colour tests respond to cannabinoids as a family. The most refined of them compares THC with CBD and still cannot measure the 0.30%.
- When there is doubt, the product may be seized for analysis. A compliant product can be claimed back from the prosecutor.
- The fixed fine for drug use goes up from 200 to 500 €. Once paid, it can no longer be challenged and it is recorded on your criminal record.
- Carry the original packaging and a proof of purchase, and consult a lawyer if a dispute arises.
20 August 2026: 500 € for drug use, nothing new for CBD
Law no. 2026-798 of 18 August 2026, known as the RIPOST law, appeared in Journal officiel no. 192 on 19 August. Its article 25 raises the fixed criminal fine for drug use (amende forfaitaire délictuelle, AFD) from 200 to 500 €. The service-public.fr page, updated on 21 August 2026, gives the other amounts: 400 € if you pay within 15 days, 1,000 € if nothing has been paid after 45 days. Those 45 days are also your window to challenge it. Payment ends the prosecution, rules out any challenge and leaves an entry on your criminal record.
Before a court, drug use is still punishable by one year in prison and a 3,750 € fine. Article 25 also adds a possible penalty: suspension of the driving licence for up to 3 years, even if driving played no part in the offence.
The hemp threshold stays where it was. The decree of 30 December 2021 authorises hemp varieties whose Δ⁹-THC content does not exceed 0.30%, along with their extracts and the products containing them. A CBD flower or CBD resin below that limit is not a narcotic, so the fixed fine does not apply to it. Our article on the legal THC level explains where the figure comes from.
Can an on-the-spot test tell CBD from cannabis?
Not at the level that matters. To the eye and the nose, a CBD flower and a cannabis flower are alike, and colour tests react to cannabinoids as a group, THC among them.
The forensic science department of the US state of Virginia is explicit: the Duquenois-Levine test, a long-standing classic, cannot distinguish marijuana from industrial hemp. A newer test called 4-AP gives an indication, turning pink when CBD dominates and blue when THC dominates.
Its validation study, published in 2021 in the Journal of Forensic Sciences, states the limit. The sample turns pink when THC is roughly three times less abundant than CBD, and blue when it is roughly three times more abundant. Between the two, the result is inconclusive. The test compares two molecules and gives no percentage.
A worked example makes the problem concrete. A flower with 10% CBD and 0.2% THC turns pink. A flower with 10% CBD and 0.6% THC, twice the legal limit, turns pink as well. The Virginia laboratory therefore asks for a lab analysis, even after a pink result, whenever a case turns on the 0.3% threshold. We do not know which kits each French police unit carries, and the chemistry is the same for all of them.
Step by step: what happens, what you can do
The table follows a stop on foot in the street while you carry a CBD product. Some steps may not happen at all. Our article on smoking CBD in public lists the places where smoking is banned, CBD flower included.
| Step | What may happen | What the rules say | What you can do |
|---|---|---|---|
| 1. Identity check | You are asked who you are | Proof by any means; verification at the station for 4 hours at most | Show an identity document |
| 2. Pat-down | Search for dangerous objects | Over the clothes, by an officer of the same sex, without searching pockets | Stay calm |
| 3. Search, bag | Pockets or bag opened | Search reserved for a judicial police officer; your express consent is required, except in flagrante delicto or police custody | Ask under what legal framework it takes place |
| 4. The product | You say it is CBD | No rule requires you to prove it on the spot | Show the original packaging and proof of purchase |
| 5. Colour test | Reaction with a reagent | An indication, not a measure of the 0.30% | Note the time and the announced result |
| 6. Seizure | Product placed in judicial custody | Seized by a judicial police officer, kept with the prosecutor's agreement | Note the quantity seized and the unit |
| 7. Analysis | A laboratory measures THC | Only the measured level decides whether it is a narcotic | Keep any documents you are given |
| 8. Outcome | 0.30% or less: not a narcotic. Above: drug use | Return to be requested from the prosecutor, or 500 € fixed fine or court | Before paying, know that paying ends any challenge |
Seizure is based on article 56 of the Code of Criminal Procedure, which covers objects useful for establishing the truth. Return comes under article 41-4 of the same code: the prosecutor decides, either on their own initiative or at your request. They may refuse, for instance when returning the item would create a danger, and you can challenge a refusal within one month of being notified.
The fixed fine is issued by electronic report, with no judge involved. If you get one for a product you know to be compliant, do not pay it out of reflex, since you have 45 days to challenge it. A lawyer can tell you whether a challenge is the right route in your situation.
Your rights if the stop goes further
The rules in the table are taken from the service-public.fr pages on identity checks and on pat-downs and searches. If you are held for an identity verification, you can ask for the prosecutor and a person of your choice to be informed.
Because drug use carries a prison sentence, police custody (garde à vue) is legally possible under article 62-2 of the Code of Criminal Procedure. Custody lasts 24 hours and can be renewed. The police custody page says you are entitled to a lawyer from the start, and to a doctor, an interpreter and having a relative informed. You can also stay silent; your identity is the only thing you must declare.
The fixed fine cannot be used for minors or in cases of legal reoffending, which article 495-17 of the Code of Criminal Procedure excludes.
What is worth carrying with you
You are not legally required to go out with proof. A product still in its original packaging is, however, easier to discuss than an unlabelled bag.
- The original packaging, showing the product name, the seller and the batch number if there is one.
- A proof of purchase, such as an invoice, a receipt or the order confirmation email, on paper or on your phone.
- Only a small quantity. According to service-public.fr, if the product turns out to be a narcotic, a large quantity rules out the fixed fine and the case goes to court.
An invoice proves you bought a product sold as CBD; it says nothing about its THC level. An analysis published by a seller describes a batch. In a dispute, what counts is the official analysis of the sample seized. Our laboratory page explains how to read an analysis.
Be wary as well of "CBD" products with added HHC, H4CBD or THCP: they are narcotics whatever their THC level. Our article is CBD a drug? sets out how these substances are classified.
On foot or at the wheel: two different checks
On foot, what matters is the product you carry. At the wheel, what is in your body matters too. Saliva screening looks for THC and never for CBD, and a full-spectrum product legally contains a small amount of it.
The Court of Cassation ruled on 21 June 2023 that the authorisation to sell certain hemp derivatives has no bearing on the offence of driving after drug use. That offence is punishable by 3 years in prison and a 9,000 € fine, as explained in our article on CBD and driving. For detection windows, see the guide CBD and saliva tests.
Frequently asked questions
Yes, if they suspect a narcotic. A judicial police officer can seize the product and have it analysed. When the analysis shows 0.30% THC or less, you can ask the prosecutor to return it, and the decision is theirs.
In principle, no. The fine targets drug use, and compliant CBD is not a narcotic. If you are given one all the same, you have 45 days to challenge it. Paying removes that option and leaves an entry on your criminal record.
Colour tests react to the whole family of cannabinoids, CBD among them. The 4-AP test shows whether CBD or THC is dominant but cannot measure the 0.30% threshold. That measurement needs a laboratory.
The threshold does not change: 0.30% Δ⁹-THC for flower, resin and the products containing them. A hemp resin looks like a cannabis resin, and the colour test is no better at telling them apart. Our article on whether CBD hash is legal sets out the conditions.
Written by the Phytogrammes team
Each journal article draws on cited primary sources: ANSM, EFSA, EUR-Lex and peer-reviewed publications. Product profiles are distinguished from documented laboratory results. Our approach.
Article published on . CBD is not a medicine.