International Criminal Defence Lawyer for Cross-Border Cases

When does one criminal matter become several defence problems?

Imagine a finance director invited to an interview in State A while authorities in State B seek company server records. A former employee is treated as a witness in State C. A regulatory explanation describes who approved a payment differently from a translated police record. Those are not details to smooth over by choosing the most convenient version. The team must identify the original document, its author, date, language, recipient and procedural status, then explain the discrepancy without altering the source.

A foreign evidence request does not necessarily mean a second prosecution; conversely, a regulatory inquiry, domestic investigation and foreign criminal case may have different decision-makers and disclosure rules. Start by listing procedures that actually exist, the next event in each and the person authorised to act. Do not delay a local detention or appeal deadline for a global strategy meeting.

Who may speak to police, prosecutors and courts?

Local defence counsel explains the relevant rules for questioning, access to the file, bail or detention, evidence challenges and procedural time limits. A coordinator can arrange advice, compare the factual records, keep the decision calendar and make sure that one team knows about a conflict affecting another. Coordination alone does not confer a local practising right, court standing, access to sealed material or authority to waive a client's rights. Any representation needs a clear engagement and a check of professional competence in the relevant jurisdiction.

Where applicable, Directive 2013/48/EU sets minimum EU safeguards for access to a lawyer and confidential communication, subject to its scope and exceptions. Directive 2012/13/EU concerns information about the accusation and access to case materials; Article 7 permits limited grounds for withholding certain material and requires a judicial decision or at least judicial review of such a refusal under the specified conditions. Article 8 provides a route to challenge failures under national procedure. These directives do not authorise a foreign lawyer to conduct every local interview. For a European arrest warrant, Article 10 of Directive 2013/48/EU distinguishes the lawyer in the executing state from a lawyer appointed in the issuing state to assist. Surrender itself remains a separate judicial process; see the European Arrest Warrant guide.

Case-file consistency map: one controlled record, not one merged prosecution

This illustrative matrix is a work product, not a claim that any real state has opened a case. Each row should be completed with the separately instructed local lawyer. “Permitted exchange” is conditional: check privilege, court orders, data protection, conflicts and the client's lawful instructions before sending material.

For each item, record a unique ID, original language, author, creation and receipt dates, source location, integrity record where relevant, preservation instruction and recipients. Label the status precisely: allegation, client recollection, contemporaneous record, expert interpretation or filed submission. They are not interchangeable. Preserve earlier chronology versions and explain amendments; a disputed date stays disputed until verified.

How can different accounts be reconciled without harming the defence?

Compare events one by one. Record the time zone and calendar used for bank entries; distinguish when an email was written, sent, received and exported; and keep the source-language interview transcript beside its translation. A person labelled “witness” in one country may be treated as a suspect in another. Neither label automatically controls the other file: check the actual notice and the law applicable in each forum on the relevant date.

Before approving a statement, ask who supplied each fact, what independent record supports it, whether an inconsistent earlier version is preserved, which forum may require disclosure and who may approve the wording. Test contradictions privately and lawfully. Never destroy or alter records, coordinate false testimony or contact a witness without authority. Check conflicts separately for a company, its director and former employees: their interests can diverge even if they possess the same documents. A proposed “common narrative” may be admissible, confidential or disclosable differently in each jurisdiction.

Which authority handles evidence requests and challenges?

Where Directive 2014/41/EU applies between the states concerned, a European Investigation Order (EIO) can request specified investigative measures or evidence already held abroad. The Directive does not bind Ireland or Denmark; if either is involved, identify the applicable mutual-assistance instrument instead. Article 1(3) allows a suspect or accused person, or a lawyer on their behalf, to request an EIO within national defence rights; it does not let the defence direct foreign police. Under Article 6(1), the issuing authority may issue an EIO only if it is necessary and proportionate, taking account of defence rights, and the requested measure could have been ordered under the same conditions in a similar domestic case. That is an issuing-state test; it must not be confused with the executing state's separate recognition, execution and refusal rules under Articles 10–11. The issuing authority decides whether to issue the order; the executing authority handles recognition and execution.

Article 14 separates challenges. Substantive reasons for issuing an EIO are challenged in the issuing state under its national procedure. Remedies against execution measures are equivalent to those available in a comparable domestic case in the executing state, subject to national law and fundamental rights. The directive does not supply one universal court, standing rule or deadline. Local counsel must obtain the actual order, identify the measure and issuing state, then verify the national court, legal route and deadline trigger before filing.

In Gavanozov, C-324/17 (24 October 2019), the Court of Justice ruled on what must be entered in Section J of the EIO form; it did not decide the broader question later addressed in Gavanozov II, C-852/19 (11 November 2021). In the latter case, the Court held that EU law precludes issuing an EIO for searches, seizures and a witness hearing by videoconference where the issuing state's law provides no legal remedy against issuance. The rule concerns the EU instrument and the specified context, not a worldwide right to suppress foreign evidence.

In M.N. (EncroChat), C-670/22 (30 April 2024), the Court held that an EIO to transmit evidence already held by another Member State may, in defined circumstances, be issued by a prosecutor. It did not require the issuing authority to re-check every step of the executing state's original collection process before issuing the EIO; the issuing state's own conditions for obtaining already-held evidence still apply, and compliance with fundamental rights must remain capable of subsequent judicial review. This does not make all transmitted evidence automatically admissible. Under Article 14(7), the trial court must disregard information or evidence if the accused cannot comment on it effectively and it is likely to have a preponderant influence on factual findings. This is a conditional fair-trial rule, not automatic exclusion in every case. The defence needs the acquisition and transfer records to identify the right objection and forum.

Later Court of Justice rulings reinforce that an EIO is not a general-purpose cross-border procedural order. In Delda, C-583/23 (9 January 2025), serving an indictment by itself, ordering remand pending trial (outside the specific temporary-transfer cases in Articles 22 and 23), or requiring bail is not an investigative measure for an EIO. A request to hear the accused falls within the Directive only when the hearing is intended to gather evidence; service of the indictment itself remains outside the EIO's scope even if the request combines both. In WBS GmbH, C-635/23 (10 July 2025), the Court confirmed that an administrative authority designated by national law may qualify as an issuing authority when it acts as an investigative authority in criminal proceedings and national law requires prior judicial authorisation for measures interfering with fundamental rights. Neither ruling supplies a universal national appeal forum or deadline; the actual measure and implementing law still control.

In Bissilli, C-325/24 (18 December 2025), the Court held that an EIO may seek the temporary transfer of a detained accused or a video hearing during trial even if the measure also enables attendance at trial, provided it has an evidential objective and goes no further than necessary to gather evidence. Execution cannot be refused solely because a comparable domestic measure is unavailable. Nor may Article 24(2)(b) be applied solely through general national guidelines without an individual assessment of all relevant circumstances. Other refusal grounds in the Directive remain available; an EIO cannot be used solely to secure attendance at trial without an evidential objective.

Outside the EIO system, the 1959 European Convention on Mutual Assistance in Criminal Matters may apply between its parties, subject to later instruments, reservations and national law. Article 1 concerns assistance in criminal proceedings; Article 1(2) excludes arrests and the enforcement of verdicts. Do not reuse EIO remedies for a non-EU request without verifying the actual treaty and implementing law.

Why can prosecution authorities coordinate more easily than defence teams?

Article 2 of Regulation (EU) 2018/1727 assigns Eurojust a role in supporting coordination and cooperation between national investigating and prosecuting authorities in serious cross-border crime. Eurojust is not the client's defence lawyer, does not replace a national court and does not give defence counsel blanket access to prosecution material. The defence must identify the cooperation channel actually used; two similar allegations do not prove that both countries hold the same evidence.

An evidence request, an international police alert and a demand to surrender a person are different legal processes. INTERPOL data issues belong to the INTERPOL counsel guide; arrest and surrender belong to the cross-border arrest and extradition guide. This page addresses their effect on coordinated defence, not the separate remedies themselves.

Can lawyers share a confidential file internationally?

Not automatically. The scope of legal professional privilege, waiver and compulsory production differs by jurisdiction. Marking a file “privileged” or copying another lawyer is not a universal shield. Classify interview notes, source records, internal investigation material and legal advice separately. Before sharing, check the recipient's engagement, professional duties, conflicts, intended use and onward-disclosure rules.

Where the GDPR applies, Article 5 requires purpose limitation, data minimisation and security; Articles 6, 9 and 10 require a separate check of the lawful basis and data category. Article 9(2)(f) covers certain processing necessary for legal claims; it does not remove Article 10 restrictions on criminal-offence data or professional confidentiality. Chapter V adds conditions for covered transfers outside the European Economic Area. The European Data Protection Board explains that Article 49 derogations are exceptional, not a routine replacement for an adequacy decision or appropriate safeguards.

Send an approved index before the underlying bundle. Verify recipients, limit access to the purpose, use a secure channel, record exactly what was transmitted and set retention or deletion instructions. Redact third-party data where appropriate and preserve originals. If the legal basis, privilege or destination-transfer rule is uncertain, mark the material “not cleared for sharing” until counsel resolves it. Consent alone does not cure every statutory or professional restriction.

What should the first working phase produce?

The sequence below is a practical checklist, not a statutory 72-hour timetable. Any deadline imposed by local law for an arrest, response or appeal takes priority. Assign a decision owner to each step before requesting documents from multiple people.

1. Urgency and authority: list every arrest, hearing, interview, service event and response date; record the legal trigger, time zone, forum and instructed local lawyer. Escalate an imminent deadline directly to that lawyer.
2. Interests and permissions: identify each client and related person, screen for conflicts, confirm who may instruct or receive information and define a narrow written coordination scope.
3. Source inventory: preserve original notices, interview records, orders, exhibits and translations lawfully; note provenance and any sealed-file or third-party restriction.
4. Cross-file reconciliation: build the matrix and chronology, mark contested points and alternative dates, cite the record supporting each version and never overwrite an earlier version.
5. Remedy routing: ask local counsel what act may be challenged, by whom, before which authority and by what deadline. Use an EU or treaty route only when it actually applies.
6. Approval and handoff: record who approves each statement, production, interview position or external communication; circulate only material cleared for that recipient and purpose.

Defined outputs may include a forum-and-stage register, source-document index, discrepancy log, privilege and data-transfer gate, decision calendar and instruction sheet for each counsel. These are examples, not a promise that a particular service, local lawyer or result is already available. Scope, fees, conflicts and professional authority must be confirmed before engagement.

What helps an initial assessment, and what should not go in an unsecured message?

Identify the countries involved, the formal document received, its service date and method, the next known event and whether counsel is instructed in each country. State the person's status according to each notice—witness, suspect, accused or detained—or say it is unknown. Mention language or interpreter needs. Do not send passwords, full witness interviews, intimate details or an entire disclosure bundle in an initial message unless a secure and justified process has been agreed.

Ask who coordinates, whether that person gives legal advice in any stated jurisdiction or only coordinates, which locally authorised lawyers will take formal steps, what conflict and privilege checks precede sharing, and how evidence versions will be recorded. The first engagement can be limited to a case map and proposed routing without committing to representation in every country.

Which mistakes create the greatest downstream risk?

• One unexplained master statement: translating a draft does not make it correct in every file. Preserve its history and corrections.
• One deadline for every forum: service dates, appeal triggers and clocks differ. There is no universal cross-border deadline.
• Privilege assumed across borders: filing in court, sending to a regulator or sharing with a third party may change confidentiality. Clear the channel first.
• Prosecution cooperation mistaken for a defence remedy: an authority-to-authority EIO does not make Eurojust the forum for a client's appeal.
• Witness and client interests treated as identical: separate advice may be necessary before interview or exchange.
• Automatic exclusion assumed: under M.N., the fair-trial test is conditional and the national trial court applies the relevant rules.

For a limited assessment of coordination needs, send the countries, formal notices and next known dates through the confidential request page. Scope and availability of representation must be confirmed before confidential files are exchanged. This page is general information, not advice for a specific criminal case.