Criminal Lawyers - Test Refusal Defense

The offence of refusal to submit to detection tests (Art. 383 CP) is an autonomous criminal type sanctioning the conduct of the driver who, required by law-enforcement officer, refuses to undergo the legally established tests for verification of blood-alcohol rate or presence of toxic, narcotic or psychotropic drugs. The protected legal interest is dual: road safety as collective interest and the principle of authority as the citizen's necessary cooperation with administrative traffic-police functions. Consolidated Supreme Court case-law establishes that the offence is consummated by the mere refusal, without need to prove the driver was effectively under influence, and constitutes an own-hand offence not admitting accessory participation.

Forms of Refusal

The refusal modalities are three. Express refusal consists of unequivocal verbal or written manifestation by the driver refusing the test ("I refuse to blow"). Tacit refusal covers equivalent conducts: deliberately blowing insufficiently for the device not to register, unjustifiably delaying the procedure, leaving the checkpoint, simulating non-existent physical crises; case-law equates these conducts to express refusal when officers document each failed attempt in the report. Refusal of second test or contrast analysis also integrates the type, as it forms part of the established legal protocol. The formal requirements of the demand are critical: the officer must expressly inform the driver that refusal constitutes autonomous offence under Art. 383 CP and of criminal consequences (prison and license deprivation); the absence of this documented warning vitiates the demand.

Penalties (Art. 383 CP)

The penalties of Art. 383 CP are severe and deliberately superior to those of DUI itself: 6 months to 1 year of prison, 6 to 12 months' fine (alternative) and deprivation of the right to drive motor vehicles and mopeds for more than 1 year and up to 4 years. This aggravation responds to deterrent logic: the legislator wants to prevent refusal becoming a strategy to evade a milder positive. In expedited trial procedure (Art. 795 Criminal Procedure Act) and through guilty plea (Art. 801 Criminal Procedure Act), penalties can be reduced by one third, usually negotiated as 8-12 months' fine and 12-18 months' license deprivation, avoiding actual imprisonment but bringing criminal records for road-safety offence. Concurrence with other offences is exceptional: refusal and DUI are typically mutually exclusive, but can concur with reckless driving, reckless injuries or breach of sentence.

Defence Strategy

Technical defense is articulated on four axes. First, verification of formal demand: the police report must document express warning of criminal consequences; the absence of this warning, its delivery in a language incomprehensible to the foreign driver without interpreter, or its practice in conditions preventing rational understanding (post-traumatic shock state, severe intoxication preventing conscious choice capacity) determine nullity of demand. Second, accredited physical impossibility: severe respiratory pathologies (asthma, COPD, emphysema), facial injuries after accident, medical intubation or any condition physically preventing the test exclude typicity, provided it is proven with medical report and it is verified that officers offered the alternative of blood analysis. Third, absence of intent due to post-traumatic emotional state, documented anxiety crisis or linguistic incomprehension of the demand: refusal must be conscious and voluntary, not product of an altered psychophysical state. Fourth, procedural challenge of expedited trial: in complex cases, conversion to ordinary procedure allows greater defense preparation and articulation of expert evidence.

Current Forensic Practice

In current forensic practice, refusal proceedings are concentrated in expedited trials held within short deadlines after the control, hindering effective technical defense if no intervention from legal assistance to the detained driver. Organic Law 1/2025 on Justice Service Efficiency and procedural reforms have hardened the regime but also expanded guarantees on police video surveillance and digital chain of custody. Constitutional case-law on the right to legal assistance and Supreme Court doctrine on intent and the requirement of effective understanding of the demand allow effective defenses even in apparently closed cases. At Alonso Sala, our criminal lawyers specialized in test refusal intervene from legal assistance to the detained driver at the police station, ensure the report correctly documents the circumstances of the demand, articulate medical expert evidence on respiratory pathologies or altered psychophysical states, and build procedural strategies that in expedited trial allow favorable pleas with fine and minimum license deprivation, or in ordinary procedure raise evidentiary nullities and more elaborate technical defenses. The objective is to avoid actual imprisonment, preserve the driver's license, and minimize the impact of criminal records on the defendant's professional trajectory.