Human Rights of the Accused and of Persons in Custody

The criminal process concentrates more state power over an individual than almost any other area of public law. An arrest removes physical liberty on the say-so of a single officer, an interrogation happens behind closed doors, and a conviction can end in years of imprisonment or worse. Because the exercise of power is so direct and so easily abused, human-rights instruments treat the criminal process as the proving ground for constitutional guarantees rather than a side application of them.

The modern framework traces back to the Universal Declaration of Human Rights (UDHR, 1948), whose Articles 9 to 11 first stated, in non-binding form, that no one should face arbitrary arrest or detention and that everyone charged with a crime is entitled to a fair and public hearing with the presumption of innocence intact.

The binding successor is the International Covenant on Civil and Political Rights (ICCPR), adopted by the UN General Assembly in 1966 and in force from 1976, whose Article 9 covers liberty and security of person, Article 14 sets out fair-trial guarantees in detail, and Article 7 bars torture and cruel, inhuman or degrading treatment absolutely.

Regional systems layer their own charters on top of this floor. The European Convention on Human Rights (1950) and the Charter of Fundamental Rights of the European Union (proclaimed 2000, legally binding across member states since the Lisbon Treaty took effect in 2009) both restate fair-trial and anti-torture guarantees in terms enforceable by the European Court of Human Rights and the Court of Justice of the European Union respectively.

Post-apartheid South Africa took a similar route domestically: the 1996 Constitution's Bill of Rights writes these same guarantees directly into supreme law, so a violation is a constitutional claim, not merely a breach of an external treaty. India, the United States, the European Union and South Africa each supply a working example across this topic, precisely because each reached similar guarantees through a different route.

What ties the instruments together is a shared structural idea: rights are attached to a stage of the process rather than to a status. A suspect being questioned has different protections from an accused person on trial, who in turn has different protections from a convicted prisoner.

Keeping the stages distinct is what allows the same body of law to protect an innocent suspect awaiting arraignment, an accused person mid-trial, and a sentenced prisoner without collapsing into a single undifferentiated list of demands.

Presumption of innocence is the organising principle of the trial stage: the prosecution must prove guilt beyond reasonable doubt, and until it does, the accused is treated as innocent for every purpose, including bail decisions and pre-trial publicity.

ICCPR Article 14(2) states the rule directly, and it is implicit in due process under Article 21 of the Constitution of India, which the Supreme Court has repeatedly used to strike down procedures that shift the burden onto the accused without adequate justification.

Legal aid turns the presumption of innocence from a formality into something usable. In India the Supreme Court held in M.H. Hoskot v State of Maharashtra (1978) that free legal aid to an indigent accused is part of a reasonable, fair and just procedure under Article 21, and Article 39A of the Constitution, added by the 42nd Amendment, directs the state to provide it.

The United States reaches the same destination through the Sixth Amendment right to counsel, and the European Union's Charter Article 47 guarantees legal aid to those lacking sufficient resources where it is needed to ensure effective access to justice.

Speedy trial prevents the process itself from becoming the punishment. The Indian Supreme Court read this into Article 21 in Hussainara Khatoon v State of Bihar (1979), a case brought over undertrials held in Bihar jails for longer than the maximum sentence their alleged offences carried.

The procedural code that now governs Indian criminal trials, the Bharatiya Nagarik Suraksha Sanhita, 2023 (BNSS), took effect on 1 July 2024 in place of the Code of Criminal Procedure, 1973, and it carries forward and in places tightens timelines for charge, trial and judgment.

The right against self-incrimination bars compelling a person to be a witness against themselves. Article 20(3) of the Indian Constitution states this as a fundamental right, and the American analogue, drawn from Miranda v Arizona (1966), requires that a suspect in custodial interrogation be warned of the right to silence and to counsel before any statement can be used against them.

Both doctrines share the same worry: a confession extracted under pressure, physical or psychological, is unreliable evidence and an abuse of state power at the same time.

The period between arrest and the first appearance before a judicial officer is where an accused person has the fewest visible protections and the greatest exposure to abuse, which is why human-rights law treats informing and producing as the two non-negotiable steps.

Article 22 of the Constitution of India requires that an arrested person be told the grounds of arrest and be produced before a magistrate within 24 hours, excluding travel time; Section 35 of the South African Constitution sets a 48-hour outer limit for the equivalent step; and in the United States a person arrested without a warrant is constitutionally entitled to a prompt judicial determination of probable cause, which the Supreme Court in County of Riverside v McLaughlin (1991) read as ordinarily meaning within 48 hours.

The remedy that sits behind all of these time limits is the writ of habeas corpus, literally "you shall have the body", which compels whoever is holding a person to bring them before a court and justify the detention.

The writ predates any modern human-rights instrument, tracing to English common law and the Habeas Corpus Act 1679, and it survives today as a constitutional remedy in its own right: Articles 32 and 226 of the Indian Constitution let a person, or anyone acting on their behalf, petition the Supreme Court or a High Court directly, and ICCPR Article 9(4) restates the same guarantee as a binding international norm, entitling anyone deprived of liberty to take proceedings before a court so that the court can decide without delay on the lawfulness of the detention.

International law defines arbitrary detention more broadly than a missed deadline. The UN Working Group on Arbitrary Detention, established by the Human Rights Commission in 1991, treats detention as arbitrary when it has no legal basis at all, when it punishes someone for exercising a protected right such as free expression, when the person was denied a fair trial, or when detention is based on a discriminatory ground such as religion or political opinion.

A detention can therefore be procedurally on time and still arbitrary in substance, which is why courts examine both the clock and the underlying justification.

None of this determines whether a particular accused person should be released on bail while the case proceeds; that is a distinct and more granular body of law covering sureties, conditions and the categories of offence for which bail is a matter of right rather than discretion, covered in pre-trial detention, remand and bail.

What the arbitrary-detention guarantee adds is a floor beneath any bail regime: however a jurisdiction structures its bail law, it cannot hold someone without any legal basis or any opportunity to contest the detention before a court.

Custody, whether under police interrogation or judicial remand, is where the risk of abuse is highest and the external visibility of the process is lowest, which is why international law treats the prohibition of torture as an absolute, non-derogable rule with no exception, even in a declared emergency or for the gravest alleged offence.

ICCPR Article 7 states this directly, and the dedicated UN Convention Against Torture (CAT), adopted in 1984 and in force from 1987, requires states parties to criminalise torture and to prevent cruel, inhuman or degrading treatment in any territory under their jurisdiction.

India's Supreme Court laid down binding procedural safeguards against custodial abuse in D.K. Basu v State of West Bengal (1997), including a requirement to prepare a memo of arrest attested by a witness, to inform a relative or friend of the arrest, and to permit a medical examination at the time of arrest and at regular intervals thereafter.

The BNSS, in force since July 2024, codifies several of these safeguards directly into statute, alongside Article 22 of the Constitution, which independently guarantees the right to be informed of the grounds of arrest and produced before a magistrate within 24 hours. The route from a directive order to codified statute is traced, alongside binding precedent, in the comparison of landmark judgments on custody, counsel and trial delay.

The comparative picture is similar in structure even where the wording differs. The Fourth and Fifth Amendments to the US Constitution restrict unreasonable searches and seizures and compelled self-incrimination during custody, and Section 35 of the South African Constitution lists detailed rights for arrested, detained and accused persons, including the right to be informed of the reason for detention and to be brought before a court within 48 hours.

What all four jurisdictions share is the same underlying worry: unsupervised custody is where confessions can be coerced and injuries can go unrecorded, so the safeguards focus on documentation, time limits and independent oversight rather than on the substance of the interrogation alone.

A conviction ends the presumption of innocence but does not suspend a prisoner's basic human rights. International standard-setting on this point is captured in the UN Standard Minimum Rules for the Treatment of Prisoners, first adopted in 1955 and comprehensively revised and renamed the Nelson Mandela Rules by UN General Assembly Resolution 70/175 in 2015.

The Rules cover accommodation, hygiene, medical care, disciplinary limits, and an outright ban on prolonged solitary confinement, defined as confinement for more than 15 consecutive days.

National constitutions and statutes supply the enforceable version of these standards. Indian courts have read humane conditions of confinement into Article 21's guarantee of life and personal liberty, and the same line of reasoning extends to work inside prison and to parole, a conditional early release under supervision, treated as part of reformative rather than purely retributive punishment.

South Africa's Correctional Services Act similarly frames sentence as a period to be served under conditions consistent with human dignity, with parole available on defined criteria rather than as a matter of executive grace alone.

The United States runs a comparatively fragmented system: prisoner rights are protected mainly through the Eighth Amendment's ban on cruel and unusual punishment, litigated case by case in federal courts, and parole eligibility varies widely by state and by offence, with some jurisdictions abolishing discretionary parole for serious felonies altogether.

The European Union does not itself administer prisons, since that remains a member-state competence, but the Council of Europe's Committee for the Prevention of Torture inspects facilities across the continent against broadly the same benchmarks the Nelson Mandela Rules set globally.

A conviction record itself can also outlast the sentence in ways that raise their own rights questions. Denial of the vote, exclusion from certain occupations, and the practical burden of disclosing a conviction to an employer or landlord vary sharply between the four jurisdictions used across this topic, and each treats the reintegration of a former prisoner as a distinct policy question from the conditions of confinement itself.

What stays constant is the baseline: a sentence removes liberty, and in some systems certain civil entitlements, but it does not remove the prohibition on inhumane treatment or the right to have conditions of confinement measured against an external standard.

Read together, these six areas show a consistent architecture rather than a patchwork: an international floor set by the ICCPR, the CAT and the Nelson Mandela Rules, regional charters that make that floor directly enforceable, and national constitutions, whether India's Articles 20 to 22, the American Bill of Rights, or South Africa's Section 35, that translate the same guarantees into rights a court in that country can actually enforce.

Having a right stated in a treaty is not the same as having a court that will hear a complaint about it. The Human Rights Committee, the body that monitors the ICCPR, can receive individual complaints against a state, but only where that state has separately ratified the First Optional Protocol, and its final views are influential rather than directly enforceable.

The European Court of Human Rights is the stronger model: an individual can bring a case directly against a state party once domestic remedies are exhausted, and a finding against the state is binding under Article 46 of the Convention.

The African Court on Human and Peoples' Rights offers a comparable route for states that have accepted its jurisdiction, though acceptance has been withdrawn by several states in recent years, illustrating that an enforcement mechanism is only as durable as the political consent behind it.

Domestic courts remain the forum where most of these rights are actually litigated, and they reach the same substantive guarantees by different constitutional routes. India's Supreme Court reads fair-trial and custodial protections into Article 21's guarantee of life and personal liberty, expanded well beyond its literal text through decades of interpretation.

The Fourth, Fifth, Sixth and Eighth Amendments to the US Constitution divide the same ground into separate textual guarantees against unreasonable seizure, compelled self-incrimination, denial of counsel and cruel and unusual punishment.

Section 35 of the South African Constitution lists the guarantees in a single consolidated clause covering arrested, detained and accused persons together, and the EU Charter of Fundamental Rights folds member states' obligations under the European Convention into a text the Court of Justice of the European Union can apply directly.

Four different drafting styles, one shared floor: no state party can go below what the ICCPR, the CAT and the Nelson Mandela Rules set, whatever domestic clause it uses to get there.