We defend your rights with clear legal solutions for unjust situations.

Have you been arrested or investigated for a criminal case in Spain?
Did you suffer pre-trial detention and were later acquitted or had your case dismissed?
Are you a legal professional seeking a key strategy?
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Our Legal Services

We provide specialized legal services in Criminal Law, with a strategic focus on defending fundamental rights and remedying serious injustices.

Spanish Criminal Law

We handle the defense in complex criminal proceedings in Spain. We protect the rights of the accused against serious charges, disproportionate precautionary measures such as pre-trial detention, and errors in the criminal justice system. Our goal is to ensure a fair process and avoid unjust convictions.

Wrongful Imprisonment

We offer specialized legal advice and representation in claims for wrongful pre-trial detention, ensuring that the harm suffered is acknowledged and redressed.

We thoroughly analyze each case, prepare the necessary documentation, and defend our clients' rights in court to secure fair compensation.

Defense of Fundamental Rights

We act in cases where essential rights recognized by the Constitution and international treaties signed by Spain have been violated. We advise and represent individuals affected by serious deficiencies in the public healthcare system and structural abuses, as well as in collective claims arising from mass frauds or financial scams.

Our objective is to achieve redress for the damage suffered, both through judicial channels and administrative claims, also utilizing European tools and regulations on the protection of fundamental rights to strengthen each case.


Off Counsel Strategy

We provide strategic legal advice to law firms, companies, and legal professionals, both national and international, who require support in complex criminal cases.

We act as Off Counsel in proceedings that demand specialization in economic crimes, drug trafficking, corporate criminal liability, or technical defense against actions of the criminal justice system.

Lawyer with experience in Law

BlayJD provides strategic and personalized legal defense focused on protecting human rights and individual freedoms, ensuring a strong and effective representation.

Javier Ruiz Blay is a criminal lawyer with expertise in international and European criminal law, specializing in complex, high-profile cases. He is recognized for his commitment and professional ethics in extradition proceedings, European Arrest Warrants, and claims for wrongful imprisonment.

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European Lawyer. Member of the Madrid Bar Association (ICA) and the Berlin Bar Association (RAK).
Member of the European Criminal Bar Association (ECBA).
Member of the Spanish-German Jurists Association.
Legal Collaboration: International Reach

At Blay JD, we work from Spain and Germany with a network of collaborators in different countries, allowing us to handle cases with a cross-border dimension or implications in multiple legal systems. We offer legal advice in Spanish, German, and English, facilitating smooth communication with international clients and legal professionals.


We collaborate with other firms as Off Counsel in criminal proceedings or in the preparation of collective actions with national or international impact. We also provide specialized legal support to individuals affected by complex legal conflicts that require a comparative and strategic legal analysis.

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