The law · Ley 5/2014 · Ministry of the Interior
What is permitted, what is prohibited, and why the answer decides whether the evidence you pay for can be used at all. Written by the licensed detective who signs the reports.
Short answer Yes, provided the investigator holds a TIP licence and there is a legitimate interest in the investigation. Anyone carrying out investigative work without that licence commits intrusismo profesional, and a Spanish court will not accept what they produce.
Private investigation in Spain is a regulated activity under Ley 5/2014, supervised by the Ministry of the Interior. The TIP — Tarjeta de Identidad Profesional — is a state authorisation held by a named individual and recorded on a public register. It is not a trade membership and it cannot be bought.
This catches foreign clients out more than anyone, because the qualification that matters is Spanish and not obvious from a website. An English-speaking investigator advertising from the Costa del Sol may be perfectly competent and still be producing something legally worthless. Ask for a licence number and check it.
Short answer Observation in public space, verification of documents and identities, consultation of certain official registers, and enquiry work on the ground. In short: what can be seen, verified or lawfully looked up — carried out proportionately and for a legitimate purpose.
Short answer Intercept communications, access private data unlawfully, enter private property, impersonate officials, or investigate without a legitimate interest. These are not professional preferences but criminal prohibitions, and the resulting material is inadmissible as well as unlawful.
If an investigator offers you any of these, the offer itself tells you what their report is worth. A licensed detective refuses because doing otherwise destroys the thing you are paying for.
Short answer A real, demonstrable reason for needing the information — normally a legal, contractual, family or economic interest that the investigation serves. It is a legal requirement, not a formality, and a licensed detective must establish it before accepting the work.
In practice, examples that qualify include proceedings that turn on cohabitation, an employer with grounds to suspect sick-leave fraud, a creditor with a judgment, an executor obliged to locate an heir, an owner whose property is occupied, or a person about to enter a substantial transaction with a counterparty they cannot verify.
What does not qualify is equally clear: monitoring an ex-partner, tracing someone protected by a court order, investigating a person out of jealousy or curiosity, or gathering information to intimidate. We decline those, including when the client is willing to pay, and we say why.
That screening protects you. Evidence obtained without a lawful basis is not merely useless in court — commissioning it can expose the person who asked for it.
Short answer A report by a licensed detective, gathered lawfully and for a legitimate interest, can be produced as evidence in Spanish proceedings, and the detective may be called to speak to it. A report failing any of those conditions will not be, whatever it contains.
Three things determine admissibility. The investigator must hold a valid TIP. The evidence must have been obtained by lawful means. And there must have been a legitimate interest in obtaining it. Fail one and the rest does not matter.
There is a fourth thing that determines whether the report is useful, which is different from admissible: it must separate what was observed from what is inferred. A report that overstates its findings is dismantled in cross-examination. One that records uncertainty as uncertainty survives it.
People also ask
Can a UK investigator work in Spain?
Not lawfully, unless they hold a Spanish licence. Nationality is irrelevant; the authorisation is what matters, and it is Spanish. A British investigator without a TIP operating here is committing an offence and producing an inadmissible report.
How do I check whether an investigator is licensed?
Ask for the TIP number and the name it is held in. Private detectives are registered under Ley 5/2014 with the Ministry of the Interior. Anyone unwilling to give you a number to check has answered the question.
Will my partner or employee find out?
Not from us. Discretion is the operational core of the work, and being noticed ends the investigation as well as breaching confidentiality. We contact you only through the channel you choose and never identify our client to a third party.
Can I use the evidence outside Spain?
That depends on the forum and is a question for your lawyer. What we can say is that a report prepared to the Spanish standard, signed by a licensed detective, generally satisfies the more demanding conditions.
Do investigators have to report crimes they discover?
Licensed detectives operate within the framework of Ley 5/2014, which imposes duties of collaboration with the authorities in defined circumstances. This is one of several reasons why the scope of an instruction is agreed clearly at the outset.
Before you instruct anyone
Every case we take begins with that question, and the conversation costs nothing. If there is no lawful basis for the work, we tell you so and stop — and we do not look for a way around it.
This article explains Spanish law in general terms for an English-speaking reader. It is not legal advice. Take advice on your own facts before acting.