Criminal Lawyers in Assault on Authority

Almost all these cases arise from a police report drafted by the officers involved and move quickly, often through urgent proceedings. The classification turns on how intense the conduct was. Assault on authority under Art. 550 CP requires attacking, assailing or seriously resisting with violence or grave intimidation an authority, its agents or public officials acting in that capacity, and carries 1 to 4 years' imprisonment and a 3-to-6-month fine where the victim is an authority, and 6 months to 3 years in other cases. Below that threshold, serious resistance or disobedience under Art. 556.1 CP carries 3 months to 1 year or a 6-to-18-month fine, and mere disrespect under Art. 556.2 CP carries a fine. The difference between the two classifications can be the difference between prison and a fine.

• Get a medical report the same day, even for minor injuries. The emergency-room report with the time and description of the injuries is the only objective evidence of how the intervention unfolded, and it is the first thing lost if the day passes.
• Track down the recordings before they are erased. Street cameras, premises cameras, police vehicle cameras and bystander videos. Private systems usually overwrite within days, so the request must go out immediately.
• Do not make a statement without knowing what the police report says. The officers' account sets the version the defence must contest point by point. Testifying before reading it usually produces contradictions that later weigh more than the facts themselves.
• Do not post about the incident on social media. Posts published after the arrest are produced as evidence of contemptuous intent and are the usual argument for charging assault rather than simple resistance.

The crime of assault on authority (Arts. 550-556 of the Spanish Criminal Code) is one of the most controversial offences under Title XXII on crimes against public order. The protected legal interest is twofold: on the one hand the principle of authority as a pillar of the rule of law, and on the other the physical integrity and freedom of action of the agents and officials exercising public functions. The Supreme Court makes clear that not every friction with an officer falls within the type: an attack endowed with a certain entity and an intentional element of contempt for the public function is required.

The Criminal Code provides a graduated scheme. The core conduct is the assault of Art. 550: attacking or charging at an authority, an agent or a public official in the exercise of their functions, or offering them serious resistance with violence or serious intimidation. Art. 556 punishes serious resistance and disobedience without that violence or intimidation, with notably lower penalties. Art. 550.1 always covers public-sector teachers and healthcare staff, and Art. 554 extends protection to on-duty members of the Armed Forces, to those who come to the aid of officers, to firefighters and rescue teams in emergencies and to private security staff cooperating with the police (former Art. 555 was repealed in 2015).

Penalties are substantial and graduated according to the passive subject and the means used. Assault on an authority carries 1 to 4 years' imprisonment and a 3 to 6 months' fine, and 1 to 6 years plus a fine of 6 to 12 months if the victim is a member of a government, a parliament or a local council, a judge, a magistrate or a prosecutor (Art. 550.3 CP); in all other cases —law-enforcement officers and public officials— 6 months to 3 years' imprisonment (Art. 550.2 CP). Art. 551 CP raises the penalty by one degree where weapons or dangerous instruments are used, where a motor vehicle is employed, where the violence is potentially dangerous to life, or where the acts take place during a prison riot; on-duty members of the Armed Forces receive the same protection as officers (Art. 554.1). Serious resistance or disobedience under Art. 556.1 carries 3 months to 1 year prison or a fine of 6 to 18 months, and mild disobedience is an administrative infraction under Organic Law 4/2015 on Citizen Security.

Technical defence rests on several axes consolidated by case-law. The first is requalification to resistance under Art. 556: many police reports describe scuffles, attempts to break free or falls to the ground that hardly reach the "serious entity" required by the Supreme Court. The second axis is the challenge to the presumption of veracity of the police report: the police report counts as a complaint (Art. 297 LECrim) and the officer's statement at trial is assessed as witness evidence under the rules of rational judgment (Art. 717 LECrim), not as conclusive truth, and may be contrasted with bodycams, municipal cameras, witness videos and reciprocal injury reports. The third axis is self-defence against police excess: when the officer acts outside the legal framework or uses disproportionate force, the citizen may repel the aggression under Art. 20.4 CP, a restrictive doctrine but applied by the Supreme Court in extreme cases. Finally, the serious-addiction mitigating factor (Art. 21.2) or intoxication by analogy (Art. 21.7), or outburst (Art. 21.3), may apply where serious affectation of will is proven.

In forensic practice, assault proceedings have multiplied in the context of nightlife, demonstrations, traffic controls and, in recent years, healthcare and educational conflicts. The LO 1/2015 reform toughened the criminal response (Organic Law 14/2022 did not amend assault on authority): it brought in teachers and healthcare staff and added violence potentially dangerous to life and the use of motor vehicles as aggravating forms (Art. 551), the cases that now dominate prosecutions where injuries occur, vehicles are used or attacks target police units in public order. At Alonso Sala we intervene from legal assistance at the police station, the critical moment when the investigated party's initial version is documented and urgent measures are requested (seizure of bodycams, requests for recordings from nearby premises, certification of images from the Coordination Centre). Our strategy combines technical-procedural defence with private medical experts who challenge the mechanics of the injuries claimed by officers, and the active search for independent witnesses that break the one-sided logic of the police report. We approach each case with the conviction that constitutional guarantees must prevail over accusatory inertia.