1. Introduction

Wrongful conviction genetic review refers to the legal procedures through which a person convicted of a criminal offence seeks to establish their innocence using newly discovered genetic evidence, particularly DNA (Deoxyribonucleic Acid) testing.

In Morocco, genetic evidence can play an important role in correcting miscarriages of justice, especially in cases involving:

Murder and homicide.

Sexual offences and rape.

Misidentification of suspects.

False or contaminated forensic evidence.

Disputed biological samples.

Incorrect identification of human remains.

Fabricated or unreliable forensic testimony.

The central legal issue is whether newly obtained DNA evidence can establish that a convicted person was wrongly identified or that the original conviction should be reconsidered.

Morocco's legal framework must be understood through three interconnected areas:

Criminal procedure and extraordinary judicial review.

Forensic science and the admissibility of DNA evidence.

Constitutional rights, privacy and protection against arbitrary conviction.

An important distinction is that Moroccan law provides a general mechanism for reviewing wrongful convictions based on newly discovered evidence; it does not establish a separate, comprehensive DNA-only innocence procedure.

2. Constitutional framework governing genetic review

The Moroccan Constitution of 2011 establishes the fundamental protections relevant to wrongful conviction proceedings.

A. Article 23 – Presumption of innocence and fair trial

Article 23 guarantees:

Presumption of innocence.

Right to a fair trial.

Protection against unlawful arrest and conviction.

Legal safeguards for detained persons.

If DNA testing produces credible evidence contradicting the factual basis of a conviction, Article 23 provides an important constitutional foundation for seeking judicial correction.

B. Article 22 – Protection of physical integrity

Article 22 prohibits violations of physical and moral integrity and prohibits torture.

This is relevant where biological samples have allegedly been obtained through coercion, unlawful bodily interference or abusive investigative practices.

C. Article 24 – Right to privacy

Article 24 protects private life and regulates intrusions into personal privacy.

Genetic information is particularly sensitive because DNA can reveal biological relationships and other personal information. Consequently, collection, storage, examination and disclosure of genetic material should respect applicable legal safeguards.

D. Article 120 – Right to justice

Article 120 guarantees the right to a fair trial and judicial protection.

Together, these constitutional provisions support a legal approach in which scientific evidence must be evaluated fairly, reliably and consistently with individual rights.

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3. Principal legislation: Moroccan Code of Criminal Procedure

The principal legislation is Law No. 22.01 concerning the Code of Criminal Procedure, as amended by Law No. 03.23.

Current framework

Law No. 03.23 was promulgated in August 2025, published in Official Bulletin No. 7437 on 8 September 2025 and entered into force on 8 December 2025. Therefore, the amended provisions are applicable as of November 2026.

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The most important provisions for wrongful conviction review are Articles 565–574.

A. Article 565 – Purpose and exceptional nature of review

Article 565 establishes that judicial review is available to correct a factual error prejudicing a person convicted of a felony or misdemeanour.

It also makes review conditional upon the absence of another available remedy and compliance with the statutory grounds and procedures.

Application to genetic evidence:

Suppose an individual is convicted of murder based on eyewitness identification and circumstantial evidence. Several years later, DNA testing of preserved biological material identifies another individual as the likely contributor.

This evidence may support an application for review if it satisfies Article 566(4).

The important question is whether the genetic evidence makes the convicted person's innocence sufficiently probable, rather than merely raising an insignificant doubt.

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B. Article 566 – Four statutory grounds for judicial review

Article 566 establishes four grounds on which a review application can be made.

The fourth ground is particularly important for genetic review.

Examples include:

Newly available DNA testing excluding the convicted person as the source of biological material.

DNA identification of another person as the source of material recovered at the crime scene.

Genetic identification establishing that alleged human remains belong to another person.

New forensic analysis demonstrating that the original DNA interpretation was scientifically unreliable.

DNA evidence establishing that biological samples were incorrectly attributed to the convicted person.

However, DNA evidence does not automatically establish innocence. Its significance must be assessed alongside the other evidence and the circumstances of the offence.

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C. Article 567 – Persons entitled to request review

Article 567 regulates who can initiate the review process.

For the first three grounds under Article 566, the following may request review:

The Prosecutor General at the Court of Cassation.

The convicted person.

The convicted person's legal representative where the person lacks legal capacity.

Following the convicted person's death or declared absence, specified family members, heirs, legatees and a person holding an express mandate granted before death.

For the fourth ground, involving newly discovered facts or documents capable of establishing innocence, the application is reserved to the Prosecutor General at the Court of Cassation, acting as head of the prosecution service, following a request by the Minister of Justice.

This is an especially important procedural limitation for DNA-based wrongful conviction claims.

A convicted person cannot simply assume that submitting a new DNA report directly to the Court of Cassation will automatically initiate review under Article 566(4). The appropriate prosecutorial route must be followed.

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D. Article 567-1 – Review panel

The amended legislation establishes a Review Panel at the Court of Cassation.

The panel consists of three counsellors appointed by the First President of the Court of Cassation.

Its responsibilities include examining:

Whether the applicant has legal standing.

Whether statutory conditions are satisfied.

Whether the necessary supporting documents have been provided.

Whether the application should be accepted or rejected.

This creates a preliminary judicial screening mechanism before the criminal chamber considers the substantive review.

E. Article 568 – Admission and referral

Article 568 provides that the Review Panel accepts applications satisfying the legal requirements and refers them to the Criminal Chamber of the Court of Cassation.

It also provides that the application itself does not automatically suspend execution of the sentence.

The provision requires separation between judges involved in preliminary admissibility and those deciding the substantive review, with non-compliance attracting nullity.

This separation is important for procedural fairness.

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F. Article 569 – Suspension of punishment

Article 569 regulates suspension of sentence execution.

Its principal distinctions are:

Where the sentence has not yet been executed, execution is suspended by operation of law once the review application is referred to the Criminal Chamber.

Where the convicted person is imprisoned, the Criminal Chamber may order suspension after receiving the prosecution's submissions.

Further suspension may also be ordered under the applicable statutory procedure.

The court may impose judicial supervision measures where appropriate.

This is particularly significant where new DNA results strongly undermine the factual basis of a lengthy custodial sentence.

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G. Article 570 – Judicial investigation and DNA verification

Article 570 is particularly important for genetic evidence.

It empowers the Criminal Chamber of the Court of Cassation to undertake investigations necessary to establish the truth.

These may include:

Investigations conducted directly by the court.

Judicial commissions.

Confrontations.

Identification investigations.

Other necessary investigative measures.

In a DNA-based case, these powers provide a procedural foundation for examining disputed forensic evidence, requesting further investigations and evaluating the reliability of genetic findings.

The court may ultimately reject the application or annul the challenged conviction, depending on the results of its examination.

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H. Articles 571 and 572 – Retrial or final judicial determination

Article 571 provides for referral to a court of equivalent type and level where a fresh oral and adversarial hearing can take place.

Article 572 addresses situations where conducting a new hearing between all parties is impossible, including certain cases involving death or incapacity.

These provisions ensure that judicial review can lead to an appropriate final determination even when a conventional retrial cannot take place.

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I. Article 573 – Compensation for wrongful conviction

Article 573 provides an important remedy where the review results in a new decision establishing the convicted person's innocence.

The person may request compensation for the harm caused by the wrongful conviction.

The legislation also provides for the State to bear the compensation awarded, subject to statutory rights of recourse against responsible civil parties, informers or witnesses whose fault contributed to the conviction.

Potentially compensable harm includes:

Unlawful deprivation of liberty.

Loss of employment and income.

Psychological suffering.

Damage to reputation.

Family separation.

Social exclusion.

Compensation is not automatic merely because a new DNA test is obtained. It must follow the relevant judicial determination and statutory requirements.

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4. DNA testing and forensic evidence procedures

Genetic review requires more than obtaining a laboratory report. The evidence must be scientifically reliable and legally usable.

A. Collection of biological samples

Potential biological evidence includes:

Blood samples.

Saliva.

Hair containing suitable biological material.

Semen.

Skin cells.

Bone fragments.

Teeth and other human remains.

The investigating authorities should document the collection circumstances, identify the sample and preserve its integrity.

B. Preservation of biological evidence

The preservation process is essential because DNA material may deteriorate or become contaminated.

Important safeguards include:

Appropriate packaging and storage.

Recording the identity of the collecting officer.

Documenting the date, time and location of collection.

Maintaining records of every transfer.

Preventing contamination and unauthorised access.

Maintaining an auditable chain of custody.

A break in the chain of custody does not necessarily make DNA evidence automatically inadmissible, but it can undermine its reliability and evidential weight.

C. Independent DNA examination

The defence may have grounds to request independent scientific examination where the original forensic report is disputed.

For example, a second examination might establish that:

The DNA profile was incomplete.

The original sample contained DNA from multiple contributors.

Laboratory contamination occurred.

The statistical interpretation was incorrect.

The testing methodology was insufficiently validated.

D. Interpretation of DNA results

A DNA match should not automatically be treated as proof of guilt.

A forensic expert must distinguish between:

A match between DNA profiles.

The statistical strength of the match.

The possibility of secondary transfer.

The possibility of contamination.

The relevance of the DNA to the alleged offence.

For example, DNA belonging to a convicted person at a crime scene does not necessarily establish that the person committed the offence. The biological material may have been deposited innocently or transferred indirectly.

5. Protection of genetic information under Law No. 09-08

Morocco's Law No. 09-08 concerning the protection of individuals with regard to the processing of personal data is relevant to genetic information.

Its importance arises because DNA profiles constitute highly sensitive personal information.

The framework addresses:

1. Lawfulness of processing: Genetic information must be processed in accordance with applicable legal requirements.

2. Purpose limitation: Genetic material collected for one investigation should not automatically be used for unrelated purposes.

3. Security: Appropriate safeguards should protect genetic databases and laboratory records.

4. Sensitive information: Processing of sensitive data, including genetic information outside medical care and information relating to offences and convictions, is subject to specific statutory controls and CNDP requirements.

5. Confidentiality: Unauthorised disclosure of genetic information can raise privacy and data-protection issues.

These protections are important when a person requests access to archived DNA samples, laboratory records or previously generated genetic profiles for wrongful conviction proceedings.

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6. Important judicial decisions and case laws

A significant research distinction must be made between Moroccan legislation and comparative international jurisprudence.

I could not verify a published Moroccan Court of Cassation judgment specifically establishing a DNA-based wrongful conviction review precedent. Accordingly, the following international decisions should be treated as comparative authorities, not binding Moroccan precedents.

A. Moroccan statutory judicial authorities

1. Moroccan Code of Criminal Procedure – Articles 565 and 566

These provisions establish the legal basis for correcting factual errors through extraordinary review.

Their importance lies in recognising newly discovered facts and previously unknown documents capable of establishing innocence.

A new DNA examination could potentially fall within Article 566(4), provided the statutory requirements are satisfied.

2. Moroccan Code of Criminal Procedure – Article 570

This provision gives the Criminal Chamber investigative powers to establish the truth in review proceedings.

It is particularly relevant to applications requiring additional forensic investigations or verification of disputed identity evidence.

3. Moroccan Constitution – Article 23

This constitutional provision guarantees the presumption of innocence and fair trial.

It provides a constitutional foundation for protecting convicted persons against the continuation of convictions affected by serious factual errors.

B. Comparative international case law

4. Herrera v. Collins (1993), 506 U.S. 390

The United States Supreme Court considered whether a claim of actual innocence based on newly discovered evidence could independently provide grounds for federal habeas relief after conviction.

The decision distinguished between a claim that the trial was constitutionally unfair and a claim of factual innocence based on new evidence.

Relevance to Morocco: It illustrates why a DNA report must be connected to the statutory grounds for reopening a final conviction rather than simply being presented as a general disagreement with the original judgment.

5. District Attorney's Office for the Third Judicial District v. Osborne (2009), 557 U.S. 52

The Supreme Court examined a convicted person's request for post-conviction access to biological evidence for DNA testing.

It considered the constitutional and procedural dimensions of post-conviction DNA access.

Relevance to Morocco: This decision provides a useful comparative framework for considering access to preserved biological samples, procedural fairness and the availability of post-conviction scientific testing.

It does not establish an unconditional right to DNA testing in Morocco.

6. S. and Marper v. United Kingdom (2008), Applications Nos. 30562/04 and 30566/04

The European Court of Human Rights examined the retention of fingerprints and DNA profiles of individuals who had not been convicted.

The Court found that the blanket and indiscriminate retention arrangements violated Article 8 of the European Convention on Human Rights, protecting private life.

Relevance to Morocco: The decision is relevant to the proportionality of retaining genetic information and the protection of individuals against unnecessary or excessive genetic-data processing.

It is a comparative privacy authority, not a Moroccan wrongful-conviction judgment.

7. Brady v. Maryland (1963), 373 U.S. 83

The United States Supreme Court held that suppression by the prosecution of material evidence favourable to an accused violates due process where the evidence is material to guilt or punishment.

Relevance to Morocco: This decision illustrates the importance of disclosure of exculpatory forensic material. For example, a prosecution should not conceal a material DNA report that undermines its identification theory.

Its legal rule is based on United States constitutional law and is not directly binding on Moroccan courts.

7. Practical procedure for requesting genetic review in Morocco

A person seeking review on the basis of newly discovered DNA evidence should consider the following procedural steps.

Obtain the original criminal judgment

Obtain the conviction judgment, forensic reports, investigation records and relevant evidence.

Identify the new genetic evidence

Identify preserved biological samples or newly discovered material capable of being scientifically examined.

Request independent forensic testing

Arrange an appropriately documented DNA examination through a qualified forensic laboratory, subject to applicable legal authorisation.

Establish the evidentiary significance

Demonstrate how the genetic findings contradict the original prosecution theory or support the convicted person's innocence.

Prepare the review application

Assemble the original judgment, new forensic report, sample documentation, chain-of-custody records and expert explanations.

Approach the competent prosecutorial authority

For a newly discovered fact under Article 566(4), submit the request through the Prosecutor General at the Court of Cassation, following the statutory procedure involving the Minister of Justice.

Judicial admissibility examination

The Review Panel examines the application under Article 567-1 and the applicable provisions.

Substantive judicial examination

Following referral, the Criminal Chamber can undertake further investigations under Article 570.

Annulment and further proceedings

If the application succeeds, the court may annul the conviction and apply the appropriate procedure under Articles 571 and 572.

Compensation

Following the relevant decision establishing innocence, the person may seek compensation under Article 573.

8. Major legal challenges

Despite the availability of extraordinary review, several difficulties can affect genetic-evidence applications.

9. Proposed legal reforms

Morocco could strengthen its wrongful conviction safeguards through the following reforms.

A. Independent post-conviction DNA testing

A specific statutory mechanism could enable convicted persons to request independent DNA testing where relevant biological evidence remains available.

B. Preservation of biological evidence

Evidence connected with serious criminal convictions should be preserved under clear retention rules, especially where the conviction may be challenged.

C. Independent forensic laboratories

Laboratories should operate under recognised quality-management and accreditation standards, with transparent procedures for handling disputed results.

D. Access to forensic records

Defence lawyers and courts should have appropriate access to original laboratory reports, underlying test data and chain-of-custody documentation.

E. Special protection for vulnerable prisoners

Legal assistance and forensic support should be accessible to prisoners who lack the financial resources to obtain independent scientific examinations.

F. Compensation and rehabilitation

Individuals exonerated through genetic evidence should have access to compensation, rehabilitation support and appropriate correction of official records.

10. Relationship with international human rights law

Morocco's international human rights obligations also provide relevant interpretative principles.

Important instruments include:

International Covenant on Civil and Political Rights (ICCPR), Article 14: Fair-trial guarantees and procedural protections.

ICCPR, Article 17: Protection against arbitrary or unlawful interference with privacy.

ICCPR, Article 2(3): Access to effective remedies for violations of Covenant rights.

Universal Declaration of Human Rights, Article 11: Presumption of innocence and fair-trial protections.

These instruments reinforce the importance of reliable forensic evidence, judicial impartiality and effective remedies.

11. Illustrative hypothetical case

Consider the following example.

A Moroccan citizen is convicted of murder. The prosecution relies primarily on eyewitness identification and biological material allegedly recovered from the crime scene.

After eight years, a new DNA examination becomes possible using preserved biological evidence.

The examination establishes that the DNA profile recovered from the principal crime-scene sample does not match the convicted person. Further investigation identifies another individual as a possible contributor.

The convicted person's lawyer obtains:

The original forensic report.

The new independent DNA report.

Laboratory quality-control documentation.

Evidence-preservation records.

An expert opinion explaining the discrepancy.

The lawyer submits a request for review through the appropriate prosecutorial mechanism under Article 566(4).

The Prosecutor General at the Court of Cassation considers the request in accordance with the statutory procedure. If referred, the Review Panel examines admissibility, and the Criminal Chamber may undertake further investigations.

If the new evidence establishes grounds for annulment, the court can annul the conviction and determine whether a fresh hearing is possible.

If the resulting judicial decision establishes innocence, the convicted person may seek compensation under Article 573.

Legal lesson: Genetic evidence can provide a powerful mechanism for correcting wrongful convictions, but its effectiveness depends on scientific reliability, procedural compliance and judicial assessment of the complete evidentiary record.

12. Conclusion

Regulation of wrongful conviction genetic review procedures in Morocco is principally governed by the amended Code of Criminal Procedure, particularly Articles 565–574, alongside the constitutional protections established by Articles 22, 23 and 24.

Article 566(4) is particularly important because it provides a statutory ground for review based on newly discovered facts or previously unknown documents capable of establishing innocence.

The 2025 amendments introduced an additional institutional structure through the Review Panel at the Court of Cassation and clarified the procedures for admissibility, referral and suspension of punishment.

Nevertheless, Morocco's framework should be distinguished from jurisdictions that have enacted dedicated post-conviction DNA testing legislation.

A comprehensive reform could strengthen access to preserved biological evidence, independent genetic testing, forensic transparency and compensation for innocent persons.

Ultimately, the purpose of genetic review is not merely to introduce advanced scientific technology into criminal proceedings. It is to ensure that criminal convictions remain consistent with reliable evidence, fundamental rights and the requirements of justice.

13. Important legal references

Useful primary and legal research sources:

Moroccan Code of Criminal Procedure – consolidated text.

Article 566 – Grounds for judicial review.

Article 567 – Right to request review.

Article 570 – Investigative powers of the Criminal Chamber.

Moroccan Ministry of Justice – Entry into force of Law No. 03.23.

Moroccan Constitution of 2011.

Academic qualification: The comparative cases discussed above should not be cited as Moroccan precedents. A verified Moroccan judgment specifically concerning post-conviction DNA exoneration would be needed to establish a domestic judicial precedent on that precise issue.