Your Miranda Rights at the Police Station, in Your Language

At a US police station, a detainee must understand the rights being given before a custodial waiver can be treated as knowing and intelligent. In practical terms, that means understanding the right to remain silent, the right to consult with and have an attorney present, and the consequences of answering questions without invoking those rights. A warning spoken in formal English to someone who does not understand it is not repaired by a signed form or a recorded “yes.” The Ninth Circuit’s decision in United States v. Martinez is commonly cited for the proposition that a waiver is invalid when the warnings were given in a language the person did not understand.[1]

Scope: This is US-focused editorial analysis, not legal advice. The wording, delivery requirements, waiver analysis, and available remedies can vary by jurisdiction and by the circumstances of the interrogation. A Spanish-speaking family searching for información sobre los derechos del detenido en comisaría should not assume that rules applicable in Spain govern a detention in the United States.

What the detainee needs to understand

The familiar Miranda formulation generally communicates four connected points:

• The detainee has the right to remain silent.
• What the detainee says can be used against them.
• The detainee has the right to consult an attorney and have an attorney present during questioning.
• If the detainee cannot afford an attorney, one can be appointed under the applicable procedure.

Those propositions form the general core. They do not answer every jurisdiction-specific question about when warnings are required, what wording is sufficient, how invocation must be handled, or what remedy follows an invalid waiver. In an LEP case, however, the first factual dispute is often more basic: did the person understand the advisal well enough to make a meaningful choice?

A clean form tends to compress those stages into one event. The officer reads; an interpreter speaks; the detainee nods; a box is checked. Later, the paperwork may describe the rights as “read and understood” without preserving what was actually said in Spanish, whether the interpreter summarized, or whether the detainee’s answers revealed confusion.

The language-access record is not a marginal problem

A 2024 analysis by linguist Aneta Pavlenko reviewed 460 judicial opinions involving LEP suspects. As summarized in a July 2026 NAJIT and IKIGAI practitioner resource, 36% of those suspects were advised of their rights only in English. The same resource identifies 31 documented cases in which suppression motions or post-conviction appeals were granted because warnings were incomplete or translations contained substantive errors.[1]

Those figures should be read narrowly. Judicial opinions are not a representative sample of every custodial interview, and granted motions do not establish that every imperfect translation invalidates a waiver. They do establish that courts have encountered consequential failures involving both the language selected and the substance conveyed.

The difference between awkward wording and a substantive omission is critical. An accented or inelegant translation can still communicate the rights. A fluent translation can still fail if it changes the right to counsel, omits the consequence of speaking, suggests that counsel is available only later, or turns a right into a conditional favor. The relevant question is not whether the Spanish sounds polished to an English-speaking reviewer. It is whether the words delivered to this detainee conveyed the required substance.

That inquiry requires the actual language used. A report stating that Miranda warnings were “provided in Spanish” is a conclusion, not the warning itself. Counsel needs the card, form, interpreter rendition, or recording from which the court can determine what the detainee heard. NAJIT and IKIGAI’s translation resource is useful as a practical reference, but even a standardized written version does not prove that it was read accurately or understood in the encounter under review.[1]

Why the Florida comparison narrows rather than settles the answer

Florida decisions illustrate why counsel should resist a universal claim that every foreign-language warning is either valid or defective. A defense-firm analysis contrasts Benitez v. State, which it describes as requiring warnings in the detainee’s native language, with Canete v. State and Roberts v. State, decisions it reads as allowing more leeway in the treatment of foreign-language warnings.[2]

The claimed “divergence” needs that attribution. It is the defense firm’s synthesis of the decisions, not a quoted holding in which a court announced a general doctrine that Spanish warnings receive a different legal standard from English warnings. The cases should be examined for their facts, the language actually used, the defendant’s demonstrated proficiency, and the governing district’s law rather than reduced to a statewide rule.

Uneven treatment nevertheless has a practical consequence. English warnings often arrive in familiar, standardized language. A Spanish warning may be read from an approved card, improvised by a bilingual officer, relayed through an interpreter, or pieced together across two languages. A court reviewing only the final form may not see which method was used unless counsel reconstructs it.

Spain’s statutory rule is a comparison, not the US standard

Article 520 of Spain’s Ley de Enjuiciamiento Criminal provides a useful comparative benchmark: it addresses a detainee’s access to a free interpreter and a written declaration of rights in a language the person understands.[3] That statutory framework may be what a Spanish reader expects when searching derechos del detenido en comisaría. It does not control a US suppression motion, and it should not be imported into American law as if both systems imposed identical procedures.

Where AI enters the station-house record

The technology issue does not begin and end with a machine speaking the warning. AI can enter at several different points: the advisal may be translated through software; the interview may move between English and Spanish; speech recognition may create a transcript; a translation model may convert that transcript into English; and a report-writing system may turn the resulting material into a narrative attributed to the officer.

Each transformation answers a different question. Translation concerns meaning across languages. Transcription concerns which words were spoken. Report generation concerns selection, organization, and summarization. A fluent English report can conceal an upstream error in any of the three.

Axon markets Draft One as an AI-assisted police-report product. Axon and a Microsoft customer story describe a workflow capable of generating an English report from mixed Spanish-English audio without a separate manual translation step.[4][5] That is a vendor-described capability, not an independent accuracy benchmark. It does not establish how reliably the system handles code-switching, legal terminology, regional Spanish, overlapping speakers, low-quality audio, or a frightened detainee’s abbreviated answers.

Evidentful’s marketing of multilingual AI witness interviews raises the same classification problem. A stated language count describes product coverage, not demonstrated effectiveness in custodial settings. Without an independent benchmark tied to the relevant language pair, audio conditions, speaker population, and legal task, the claim cannot establish that a particular warning or answer was accurately captured.

The defense question is therefore not simply, “Was AI used?” It is: what role did the system play in creating the evidence now offered to prove delivery, comprehension, waiver, or the substance of a statement? Machine mediation is not automatically disqualifying. Nor can the resulting report be accepted as a transparent copy of the encounter.

The original audio is the controlling comparison point

When the dispute concerns what the detainee heard or said, the underlying audio or video matters more than the smoothness of the derivative text. A machine transcript may remove hesitation, assign speech to the wrong person, normalize grammar, miss code-switching, or produce an English sentence that sounds more definite than the original. Those are possibilities to test, not errors to presume.

Counsel should compare the recording against every downstream artifact: the source-language transcript, the English translation, the officer’s narrative, and any later declaration explaining the advisal. If the prosecution relies on the report but the report was generated from audio through an automated system, the intermediate outputs and system information may bear directly on how the final wording came to exist.

The same preservation concern appears across other AI-produced police records. The site’s discussions of AI verification duties in the Twin Falls shooting record and AI-evidence risk in the Space Needle shooting record illustrate the broader discovery need: preserve source material and determine how machine-produced text relates to it. The Chris Nanos case-status record and the Palazuelos Pima County AI-risk record provide additional context for scrutinizing Draft One material. None of those records, standing alone, proves that AI caused an invalid Miranda waiver in another case.

Suppression analysis also remains tied to the governing doctrine and the actual statements at issue. The site’s review of the Tiffany Haddish DUI suppression ruling is a useful reminder to separate post-arrest statements, procedural events, and the precise evidentiary remedy requested. The presence of AI may create an additional factual and discovery dispute; it does not create a free-standing suppression rule.

Verification checklist for an LEP custodial case

The record should permit counsel to reconstruct the warning and statement from the original encounter forward. At minimum, request and verify:

• The exact warning delivered—not merely a report stating that Miranda rights were read.
• The language or languages used for each part of the advisal, including any switching between English and Spanish.
• The card, form, script, screen, or other source from which the warning was read.
• The identity and role of the person who delivered or translated it: officer, certified interpreter, other employee, family member, or software system.
• The detainee’s responses after each right, including pauses, requests for clarification, contradictory answers, and any explanation in the detainee’s own words.
• All original audio and video, including body-camera, interview-room, dispatch, booking, and interpreter-channel recordings that captured the advisal or interview.
• Any source-language transcript, English translation, machine transcript, AI-generated summary, or AI-assisted police report.
• Information sufficient to identify which tool was used, where it entered the workflow, which input it processed, and whether a person edited its output.
• Available versions or audit material showing changes between machine output, officer edits, supervisory review, and the final report.
• A line-by-line comparison of legally significant language in the audio, transcript, translation, and report, preferably reviewed by a qualified human interpreter where disputed.
• The prosecution’s evidence of actual comprehension, rather than delivery alone: language history, responsive answers, requests for explanation, prior familiarity, or other case-specific circumstances.

Machine translation or transcription may help process a long, mixed-language recording. It may also add another transformation between the detainee’s words and the document presented in court. In an LEP case, that layer should be preserved, disclosed where required, and checked against the original recording. It is neither a presumed cure for language-access failures nor, without case-specific evidence and governing authority, automatically invalid.

References

1. Miranda Warnings Translations: A Resource for Law Enforcement from NAJIT & IKIGAI — National Association of Judiciary Interpreters and Translators, July 2026
2. Miranda Rights for English vs Spanish Speakers: Different Under Florida Law? — Pumphrey Law
3. Real Decreto de 14 de septiembre de 1882 por el que se aprueba la Ley de Enjuiciamiento Criminal — Boletín Oficial del Estado
4. Draft One — Axon
5. Axon | Microsoft Customer Stories — Microsoft