In Luxembourg, searching for archaeological heritage with a metal detector requires authorization from the Ministry of Culture for scientific work in close collaboration with the Institut national de recherches archéologiques (National Institute of Archaeological Research, INRA). Training and landowner consent are part of the application, but neither guarantees permission. The heritage rule is tied to the purpose of the search; it does not confirm that searching only for modern lost items is allowed.
Can I detect in Luxembourg?
The short answer for each kind of land. Tap a card for the detail and the rule’s own words.
- Anywhere: national heritage lawResearch permits onlyChecked against the source Oct 9, 2026
- Lake & river shoresResearch permits onlyChecked against the source Oct 9, 2026
- Protected monumentsResearch permits onlyChecked against the source Oct 9, 2026
- National parks & nature reservesResearch permits onlyChecked against the source Oct 9, 2026
- State forestsResearch permits onlyChecked against the source Oct 9, 2026
- Private landResearch permits onlyChecked against the source Oct 9, 2026
Open in many areas without a permitPermit, registration, or designated beaches onlyProhibited or effectively closed
The rules, land by land
Anywhere: national heritage law
Research permits onlySearching for archaeological heritage with a metal detector requires ministerial authorization for scientific work in close collaboration with INRA.
- Article 12 of the Loi du 25 février 2022 relative au patrimoine culturel (cultural heritage law) governs detector searches for archaeological heritage.
- The applicant must have completed INRA basic training, or certified foreign training recognized as equivalent by INRA; the search must have a scientific purpose and take place in close collaboration with INRA.
- This purpose-limited rule does not establish permission for searching only for modern lost items.
- The application must include signed landowner access permission and any other authorization necessary for the operation. Landowner permission alone does not replace ministerial authorization.
- Possessing a detector or a training certificate does not automatically entitle the applicant to authorization.
What the rule says
“L’emploi de détecteurs de métaux et de tout autre équipement de détection électronique et magnétique en vue de la recherche des éléments du patrimoine archéologique est soumis à une autorisation ministérielle.”
Digging
Research permits onlyArchaeological field research capable of detecting or uncovering archaeological heritage requires prior ministerial authorization.
- Article 11 covers preventive and planned archaeological operations; it does not impose this requirement on every non-archaeological hole.
- Article 9(2) names INRA, with a reference to collaboration with another cultural institute; scientific research institutions; and persons or bodies that justify the scientific interest of the planned archaeological operation and demonstrate adequate scientific knowledge and technical means.
- Detector searches for archaeological heritage also have the distinct article 12 training, scientific-purpose and INRA-collaboration requirements.
What the rule says
“Toutes les recherches archéologiques de terrain qui sont susceptibles de détecter ou de mettre au jour des éléments du patrimoine archéologique, y compris les opérations d’archéologie préventive ainsi que les opérations d’archéologie programmée, nécessitent une autorisation ministérielle préalable.”
Keeping finds
No verdict yetGeneral rights to keep finds could not be confirmed; movable archaeological finds follow INRA custody and statutory ownership-notification procedures.
- Under article 15(2), movable archaeological finds are entrusted to INRA for inventory and scientific study, with the study period capped at five years from inventory.
- At inventory, the minister notifies the landowner and, for a chance discovery, the finder of their Civil Code articles 552 and 716 rights. If they do not assert their rights within one year after notification, a second notification is sent.
- If they still do not assert their rights within one year after the second notification, title transfers to the State without payment. Where the landowner and a chance finder are both entitled to assert rights and only one of those two does so, the finds are divided between that person and the State under ordinary law.
- Classification proceedings remain possible. Objects returned after scientific study may carry INRA conditions for conservation, transfer of ownership and INRA access.
- This archaeological-find procedure does not establish the division of ordinary non-archaeological treasure or a general right to keep ordinary lost property. The cited provision refers to, but does not reproduce, Civil Code articles 552 and 716.
- For ordinary objects deposited with police, the police FAQ describes a receipt and eight days of local custody; if attempts to locate the owner fail and/or the finder renounces, the object transfers to the national found-property service, with three-year storage when its value exceeds €200. It does not give a complete finder-title rule or a general reporting deadline.
What the rule says
“En cas de mise au jour d’éléments mobiliers du patrimoine archéologique, ceux-ci sont confiés à l’Institut national de recherches archéologiques pendant le délai nécessaire à leur inventorisation et à des fins d’étude scientifique qui ne peut excéder cinq ans à compter de l’inventorisation.”
Reporting finds
Must be reportedThe finder and landowner must notify INRA of an archaeological discovery by the next working day and preserve it in place.
- Article 16 applies to archaeological elements discovered through works or any other event; both the discoverer and the owner of the land have the reporting and temporary-conservation duties.
- Tell INRA the precise discovery location by the working day following discovery. Stop work on the affected land immediately and leave the archaeological elements in place.
- Article 17 prohibits moving a discovered archaeological element without the minister’s prior written agreement.
- INRA’s chance-discovery guidance gives sec.archeo@inra.etat.lu and +352 260 281-33 for reporting.
- These are archaeological-discovery duties. The police found-property FAQ does not establish a general deadline for reporting ordinary lost objects.
What the rule says
“l’auteur de la découverte et le propriétaire du terrain sur lequel la découverte a été faite veillent à la conservation provisoire des éléments du patrimoine archéologique découverts et doivent en informer l’Institut national de recherches archéologiques au plus tard le jour ouvré qui suit la découverte en indiquant l’endroit précis des découvertes.”
Reporting finds
Must be reportedAfter an authorized detector-prospection operation, the applicant must send INRA a final operation report.
- INRA’s detector application guidance requires a rapport final d’opération de prospection (final prospection-operation report) after the operation.
- The report goes to prospection@inra.etat.lu. This guidance does not state a numerical submission deadline; any conditions in the individual authorization also need to be checked.
What the rule says
“Suite à la réalisation d'une opération de prospection avec un détecteur de métaux, le demandeur doit remettre à l'INRA un rapport final d'opération de prospection (RFO).”
Lake & river shores
Research permits onlyDetector searches for archaeological heritage on inland beaches and shores require ministerial authorization for scientific work with INRA.
- Article 12 of the Loi du 25 février 2022 relative au patrimoine culturel (cultural heritage law) governs detector searches for archaeological heritage.
- The applicant must have completed INRA basic training, or certified foreign training recognized as equivalent by INRA; the search must have a scientific purpose and take place in close collaboration with INRA.
- This purpose-limited rule does not establish permission for searching only for modern lost items.
- The application must include signed landowner access permission and any other authorization necessary for the operation. Landowner permission alone does not replace ministerial authorization.
- This row applies the national archaeological-search rule to inland beaches and shores. The cited heritage sources do not establish separate beach-access or modern lost-item detecting permission.
What the rule says
“L’emploi de détecteurs de métaux et de tout autre équipement de détection électronique et magnétique en vue de la recherche des éléments du patrimoine archéologique est soumis à une autorisation ministérielle.”
Protected monuments
Research permits onlyDetector searches for archaeological heritage on protected monuments and archaeological sites require ministerial authorization for scientific work with INRA.
- Article 12 of the Loi du 25 février 2022 relative au patrimoine culturel (cultural heritage law) governs detector searches for archaeological heritage.
- The applicant must have completed INRA basic training, or certified foreign training recognized as equivalent by INRA; the search must have a scientific purpose and take place in close collaboration with INRA.
- This purpose-limited rule does not establish permission for searching only for modern lost items.
- The application must include signed landowner access permission and any other authorization necessary for the operation. Landowner permission alone does not replace ministerial authorization.
- For classified immovable cultural heritage, articles 29–30 also require written ministerial authorization for repair, restoration or modification other than maintenance; this is additional to the detector-search authorization.
What the rule says
“L’emploi de détecteurs de métaux et de tout autre équipement de détection électronique et magnétique en vue de la recherche des éléments du patrimoine archéologique est soumis à une autorisation ministérielle.”
National parks & nature reserves
Research permits onlyDetector searches for archaeological heritage on parks and nature reserves require ministerial authorization for scientific work with INRA.
- Article 12 of the Loi du 25 février 2022 relative au patrimoine culturel (cultural heritage law) governs detector searches for archaeological heritage.
- The applicant must have completed INRA basic training, or certified foreign training recognized as equivalent by INRA; the search must have a scientific purpose and take place in close collaboration with INRA.
- This purpose-limited rule does not establish permission for searching only for modern lost items.
- The application must include signed landowner access permission and any other authorization necessary for the operation. Landowner permission alone does not replace ministerial authorization.
- The environment administration says that work in a nationally protected area must comply with the applicable grand-ducal regulation. The national detector authorization is not a blanket exemption from that area’s rules.
- The cited sources do not establish general permission for modern lost-item detecting throughout parks and nature reserves.
What the rule says
“L’emploi de détecteurs de métaux et de tout autre équipement de détection électronique et magnétique en vue de la recherche des éléments du patrimoine archéologique est soumis à une autorisation ministérielle.”
State forests
Research permits onlyDetector searches for archaeological heritage on public forests require ministerial authorization for scientific work with INRA.
- Article 12 of the Loi du 25 février 2022 relative au patrimoine culturel (cultural heritage law) governs detector searches for archaeological heritage.
- The applicant must have completed INRA basic training, or certified foreign training recognized as equivalent by INRA; the search must have a scientific purpose and take place in close collaboration with INRA.
- This purpose-limited rule does not establish permission for searching only for modern lost items.
- The application must include signed landowner access permission and any other authorization necessary for the operation. Landowner permission alone does not replace ministerial authorization.
- The forest agency describes walking access on forest paths and trails. That access statement does not grant permission to search with a detector or recover targets; the cited heritage sources do not settle modern lost-item detecting in forests.
What the rule says
“L’emploi de détecteurs de métaux et de tout autre équipement de détection électronique et magnétique en vue de la recherche des éléments du patrimoine archéologique est soumis à une autorisation ministérielle.”
Private land
Research permits onlyDetector searches for archaeological heritage on private land require ministerial authorization for scientific work with INRA.
- Article 12 of the Loi du 25 février 2022 relative au patrimoine culturel (cultural heritage law) governs detector searches for archaeological heritage.
- The applicant must have completed INRA basic training, or certified foreign training recognized as equivalent by INRA; the search must have a scientific purpose and take place in close collaboration with INRA.
- This purpose-limited rule does not establish permission for searching only for modern lost items.
- The application must include signed landowner access permission and any other authorization necessary for the operation. Landowner permission alone does not replace ministerial authorization.
- The detector application specifically requires access authorization signed by the landowner or landowners. The national heritage provision does not establish that owner consent alone makes modern lost-item searching lawful.
What the rule says
“L’emploi de détecteurs de métaux et de tout autre équipement de détection électronique et magnétique en vue de la recherche des éléments du patrimoine archéologique est soumis à une autorisation ministérielle.”
Even where detecting is allowed, archaeological and historic sites are protected, and you must fill every hole and follow posted rules. Always confirm the current rule with the land manager.
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Open data: every rule in our Luxembourg guide, with its quote, source and check date, free to reuse (CC BY-SA 4.0). Download the data →
Getting authorization
Article 12 of the Loi du 25 février 2022 relative au patrimoine culturel (cultural heritage law) requires detector-search applicants to complete INRA basic training, or certified foreign training recognized by INRA as equivalent. The search must have a scientific purpose and take place in close collaboration with INRA. Owning a detector or holding the training certificate does not automatically entitle you to authorization.
Apply to the Ministry of Culture with signed permission from the landowner or landowners to access the ground, and any other authorization necessary for the operation. INRA’s application guidance calls for proposed start and end dates; renewal means submitting a new complete application. The guidance does not specify a fee or a standard authorization term.
Beaches, forests, parks and private land
The national archaeological-search requirement applies on inland beaches and shores, in public forests, parks and nature reserves, and on private land. It does not establish general permission for modern lost-item detecting in those places. A landowner’s access permission does not replace the ministerial authorization for archaeological searching.
The forest agency describes walking access on paths and trails; that statement does not authorize detector searching or target recovery. In nationally protected areas, work must also comply with the applicable grand-ducal regulation. A national detector authorization does not override those area rules.
Protected monuments and archaeological sites remain subject to the archaeological-search requirement. For classified immovable cultural heritage, repair, restoration or modification other than maintenance also needs written ministerial authorization under articles 29–30.
Archaeological digging
Article 11 separately requires prior ministerial authorization for archaeological field research capable of detecting or uncovering archaeological heritage. It covers preventive and planned archaeological operations; it is not a rule requiring this authorization for every non-archaeological hole.
For planned archaeology, article 9(2) names INRA, with a reference to collaboration with another cultural institute; scientific research institutions; and people or bodies that can justify the scientific interest and demonstrate adequate scientific knowledge and technical means. Archaeological detector searches also have the distinct article 12 requirements.
Who gets to keep a find?
General rights to keep finds remain unconfirmed here. The archaeological-find procedure does not establish how ordinary non-archaeological treasure is divided or when a finder acquires ordinary lost property. Article 15 refers to Civil Code articles 552 and 716 without reproducing those ownership rules.
Movable archaeological finds are entrusted to INRA for inventory and scientific study, with the study period capped at five years from inventory. At inventory, the minister notifies the landowner and, for a chance discovery, the finder of their Civil Code rights. If they do not assert those rights within a year of notification, a second notification is sent. If they still do not assert their rights within a year of the second notification, ownership transfers to the State without payment.
Where the landowner and a chance finder are both entitled to assert rights and only one of those two does so, the finds are divided between that person and the State under ordinary law. Classification proceedings remain possible, and objects returned after study may carry INRA conditions for conservation, ownership transfer and INRA access.
For ordinary objects deposited with police, the police FAQ describes a receipt and eight days of local custody. If attempts to locate the owner fail and/or the finder renounces, the object transfers to the national found-property service, with three-year storage when its value exceeds €200. This is not a complete finder-ownership rule or a general reporting deadline.
Reporting a discovery
When archaeological elements are discovered through works or any other event, both the discoverer and the landowner must inform INRA by the next working day, giving the precise discovery location. Stop work on the affected ground immediately and leave the archaeological elements in place. Moving a discovered archaeological element requires the minister’s prior written agreement.
INRA’s chance-discovery guidance gives sec.archeo@inra.etat.lu and +352 260 281-33 for reporting. These archaeological duties should not be read as a confirmed deadline for ordinary lost-property reports.
After an authorized detector-prospection operation, the applicant must also send INRA a final operation report at prospection@inra.etat.lu. The application guidance does not give a numerical submission deadline; check the individual authorization’s conditions.
Sources
Official and statutory sources this page is based on (source check: October 9, 2026):
- Loi du 25 février 2022 relative au patrimoine culturel — version consolidée au 29 avril 2025
- Je suis détectoriste
- Demande d’autorisation pour emploi de détecteur de métaux
- Démarches en cas d’une découverte fortuite
- Loi du 25 février 2022 relative au patrimoine culturel — Mémorial A no 80 du 3 mars 2022
- Objets trouvés et remis à la Police
- FAQ – Autorisations en vertu de la loi modifiée du 18 juillet 2018 – Informations pratiques
- La nouvelle loi sur les forêts
- Législation — Ministère de la Culture
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Frequently Asked Questions
- Is metal detecting legal in Luxembourg?
- Searching for archaeological heritage with a detector requires ministerial authorization, qualifying training, a scientific purpose and close collaboration with INRA. The purpose-limited heritage rule does not establish that searching only for modern lost items is allowed.
- Is landowner permission enough?
- For archaeological detector searching, no. Signed landowner access permission is part of the application, alongside ministerial authorization and any other authorization necessary for the operation. Owner consent alone does not establish that modern lost-item searching is lawful.
- Can I detect on an inland beach or in a forest?
- The national archaeological-search authorization applies there. The cited rules do not confirm general permission for modern lost-item detecting. Walking access in a forest does not itself authorize detector searching or target recovery.
- Do all archaeological finds automatically belong to the State?
- The confirmed procedure requires INRA custody for inventory and scientific study and notification of landowner and, for chance discoveries, finder rights. Failure to assert rights through two successive one-year notification periods can transfer ownership to the State. General rights to ordinary treasure or lost property remain unconfirmed here.
- What should I do if I find something archaeological?
- Both the discoverer and landowner must notify INRA by the next working day with the precise location, stop work on the affected ground immediately and preserve the find in place. Do not move it without the minister’s prior written agreement.
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