Free Practice Questions for FGR Oficial Investigador B

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Sample FGR Oficial Investigador B Practice Questions

Try these sample questions to review concepts for the FGR Oficial Investigador B exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Under Article 1 of the Mexican Constitution (CPEUM), which interpretive principle obligates all authorities, including ministerial police officers, to prefer the interpretation that most broadly favors and protects individuals?

A.Pro persona principle (principio pro persona)

B.Principle of strict legality (principio de legalidad estricta)

C.Principle of progressivity (principio de progresividad)

D.Principle of interdependence (principio de interdependencia)

Explanation: Article 1, second paragraph of the CPEUM mandates that human rights norms must be interpreted in conformity with the Constitution and international treaties, favoring at all times the broadest protection for individuals (principio pro persona).

2Under Article 14 of the CPEUM, which guarantee strictly prohibits applying a newly enacted criminal statute retroactively to past events if it harms the defendant?

A.The principle of exact application of criminal law (no punishment by analogy)

B.Non-retroactivity of laws to anyone's detriment (irretroactividad de la ley en perjuicio de persona alguna)

C.The prior hearing guarantee (garantía de audiencia)

D.The prohibition of being tried twice for the same offense (non bis in idem)

Explanation: CPEUM Article 14 establishes that no law shall be given retroactive effect to the detriment of any person ('A ninguna ley se dará efecto retroactivo en perjuicio de persona alguna'), anchoring legal certainty.

3What core requirement must every act of authority that disturbs a person's liberty, property, or possessions satisfy under Article 16 of the Mexican Constitution?

A.It must be ordered by the highest-ranking officer present and recorded afterwards in the police report

B.It must cite the applicable law, but a written order is needed only for searches of homes

C.It must be issued in writing by a competent authority, stating the legal grounds and the factual reasons (fundamentación y motivación)

D.It must always be authorized by a judge, including purely administrative acts

Explanation: Article 16 of the CPEUM requires that no one may be disturbed in their person, family, domicile, papers, or possessions except by virtue of a written order from a competent authority that establishes the legal basis (fundamentación) and factual reasoning (motivación) for the procedure.

4Under Article 16, fifth paragraph of the CPEUM, what obligation falls upon any person, including federal ministerial police, who arrests an individual in the act of committing a crime (en flagrancia)?

A.To take the person directly to a judge of control, bypassing the Ministerio Público

B.To hold the person at the scene until a written arrest warrant is issued

C.To release the person once identified and report the facts to the Ministerio Público later

D.To deliver the detained individual without delay to the nearest civil authority, which must promptly place them at the disposal of the Ministerio Público

Explanation: Article 16, fifth paragraph allows anyone to detain a person caught committing a crime or immediately afterwards, placing them without delay (sin demora) at the disposal of the nearest civil authority, which must with the same promptness place them at the disposal of the Ministerio Público. The detention must be registered immediately.

5What is the maximum statutory period under Article 16 of the CPEUM that the Ministerio Público may retain a detained person before remitting them to judicial authority or ordering their release?

A.48 hours, which may be doubled only in cases involving organized crime (delincuencia organizada)

B.24 hours, non-extendable

C.72 hours in all felony cases

D.120 hours upon discretionary request of the investigating police officer

Explanation: Article 16, tenth paragraph establishes that the period of ministerial retention cannot exceed 48 hours, within which the detainee's release must be ordered or they must be brought before a judicial authority. This term may be doubled (up to 96 hours) exclusively in cases categorized as organized crime.

6Under Article 16, eleventh paragraph of the CPEUM, which authority is exclusively empowered to issue a search warrant (orden de cateo) authorizing entry into a private residence?

A.The Investigating Ministerial Police Commander

B.The Judicial Authority (Juez de Control)

C.The Public Prosecutor (Agente del Ministerio Público)

D.The Municipal Chief of Police

Explanation: Only the judicial authority (specifically the Juez de Control) may issue a search warrant (orden de cateo), which must express the place to be inspected, the person or objects sought, and the limits of the search.

7What is the legal consequence under Article 16 of the Constitution if communications are intercepted or recorded without prior authorization from a federal judicial authority?

A.It becomes admissible if a state judge later validates the interception

B.It is admissible only in organized-crime investigations

C.The results of the interception lack all evidentiary value (carecerán de todo valor probatorio)

D.It may be used at trial as long as the defense can cross-examine the officer who recorded it

Explanation: Article 16 allows only the federal judicial authority, at the request of the authority the law empowers or of a state's Ministerio Público head, to authorize the interception of private communications. Interceptions that do not meet the constitutional and legal requirements lack all evidentiary value (carecerán de todo valor probatorio).

8Under Article 17 of the CPEUM, which fundamental principle governs dispute resolution in Mexico regarding self-defense of rights?

A.Private parties may keep a debtor's goods until the debt is paid, provided they notify a judge afterwards

B.Anyone may use force to recover stolen property within 72 hours of the theft

C.Victims may impose reparation terms on offenders without judicial or ministerial involvement

D.No person may take justice into their own hands or use violence to claim their rights (prohibición de autotutela)

Explanation: Article 17, second paragraph states: 'Ninguna persona podrá hacerse justicia por sí misma, ni ejercer violencia para reclamar su derecho' (prohibition of self-justice/autotutela), establishing the state monopoly on the administration of justice.

9Which set of guiding principles governs the Mexican adversarial criminal justice system according to Article 20 of the CPEUM?

A.Publicidad, contradicción, concentración, continuidad e inmediación

B.Legalidad, objetividad, eficiencia, profesionalismo y honradez

C.Publicidad, contradicción, celeridad, oportunidad y proporcionalidad

D.Presunción de inocencia, defensa adecuada, reparación del daño, igualdad y lealtad

Explanation: Article 20 of the CPEUM establishes that the criminal process is accusatory and oral, governed by five cardinal principles: publicidad (open hearings), contradicción (adversarial challenge), concentración (consolidated hearings), continuidad (uninterrupted flow), and inmediación (direct judicial presence).

10What is the scope and meaning of the principle of immediacy (principio de inmediación) under Article 20, Section A, Subsection II of the CPEUM?

A.Evidence must be received in a single hearing or in consecutive sessions without interruption

B.The judge must personally be present at every hearing and cannot delegate the taking or assessment of evidence to anyone else

C.Each party must be able to know and challenge the other side's evidence and arguments

D.Hearings must be open to the public, with limited exceptions set by law

Explanation: Inmediación mandates that all hearings must occur directly in the physical presence of the judge, who cannot delegate the reception or assessment of evidence or arguments to any other person.

About the FGR Oficial Investigador B Exam

General-knowledge exam in the FGR's open call for Agente de la Policía Federal Ministerial with the rank of Oficial Investigador 'B'. The official exam is in Spanish; this bank is an independent English-language MCQ study adaptation, not an official translation or format simulation.

Exam sponsor: Fiscalía General de la República — Centro de Formación y SPC. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

Question count not published by the exam provider

Time Limit

Not published

Passing Score

7.0 / 10.0

Exam / Certification Fees

No exam fee: the convocatoria states the procedures are free (trámites gratuitos), but candidates pay their own travel, food and lodging.

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Official sources

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

Not published

Marco Constitucional y Derechos Humanos

Human rights and guarantees in the CPEUM (Arts. 1, 14, 16, 17, 20, 21, 22), detention and warrant rules, due process, victims' rights, and the American Convention on Human Rights.

Not published

Derecho Penal y Procedimiento Penal Acusatorio

Código Penal Federal (dolo and culpa, attempt, legitimate defense, robo and related property crimes, crimes against the administration of justice) and the CNPP: flagrancy, caso urgente, investigation acts, chain of custody, early terminations and trial evidence.

Not published

Uso de la Fuerza y Armas de Fuego

Ley Nacional sobre el Uso de la Fuerza (principles, resistance types, levels, lethal force, reports) and the Ley Federal de Armas de Fuego y Explosivos as amended in May 2025 (reserved weapons, licenses, trafficking), plus firearm basics.

Not published

Seguridad Pública, Protocolos y Criminalística

The 2025 LGSNSP, the Ley de la FGR, first-responder protocol, crime-scene zones, forensic ballistics and trace evidence, risk analysis, CDMX traffic rules and defensive driving.

Preparing for the FGR Oficial Investigador B Exam

What You Need to Know

Passing score: 7.0 / 10.0
Assessment: Question count not published by the exam provider
Time limit: Not published
Exam / certification fees: No exam fee: the convocatoria states the procedures are free (trámites gratuitos), but candidates pay their own travel, food and lodging. Official sources

Using Our Practice Resources

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FGR Oficial Investigador B: Suggested Study Strategy

1Work through the guía temática's CNPP chapters: flagrancy and caso urgente, acts of investigation with and without judicial control, chain of custody and trial evidence.

2Learn the Ley Nacional sobre el Uso de la Fuerza article by article: principles (Art. 4), resistance types (Art. 10), levels (Art. 11), lethal force (Art. 13) and reports (Arts. 32-33).

3Review CPEUM Articles 1, 14, 16, 17, 19, 20, 21 and 22 on human rights, detention, warrants and due process.

4Study current law, not older versions: the 2025 LGSNSP replaced the 2009 law, and the LFAFE was amended in May 2025.

Frequently Asked Questions

What is the passing score for the FGR Oficial Investigador knowledge exam?

The convocatoria scores the written or electronic general-knowledge exam from 0.0 to 10 and sets 7.0 as the minimum. Only candidates who pass go on to the oral interview, confidence control and professional-competency evaluations.

How many questions are on the FGR Agente PFM knowledge exam?

The convocatoria and the Guía Temática de Estudio do not publish a question count or time limit. The exam is taken in person at FGR offices in each state.

Is this practice bank an official test simulation?

No. It is an independent English-language MCQ study adaptation created by OpenExamPrep for concept review. The official exam is in Spanish and is run by the FGR's Centro de Formación y Servicio Profesional de Carrera.

Is there a fee to take the FGR recruitment exam?

The convocatoria states that the procedures are personal and free (gratuitos). Candidates sign a commitment to cover their own travel, food and lodging costs during the process, without reimbursement.