Criminal Law, Oaths, and the Pursuit of Justice

The final chapter of At-Turuq al-Hukmiyyah addresses the practical application of Ibn al-Qayyim's theory to criminal law, the use of oaths and confessions in judicial procedure, and the broader question of how Islamic governance can reliably achieve justice in cases where evidence is incomplete or disputed.

Ibn al-Qayyim begins with the Islamic theory of criminal punishment. Islamic criminal law distinguishes three categories: hudud (fixed punishments established by explicit Quranic or Sunnah texts, applicable only when the specific evidentiary requirements are met); qisas (retaliatory punishments for bodily harm or killing, subject to the right of pardon and compensation); and ta'zir (discretionary punishments for offenses not covered by the first two categories, left to the judge's assessment of what will serve justice and deter future offense). At-Turuq al-Hukmiyyah's arguments about evidentiary flexibility apply primarily to the third category — the extensive domain of ta'zir where the judge's discretionary wisdom plays the largest role.

On hudud specifically, Ibn al-Qayyim upholds the classical rule that the prescribed punishments may not be applied without meeting the specific evidentiary requirements. The famous hadith 'Ward off the hudud with doubts' (idra'u al-hudud bish-shubuhat — reported from Umar ibn al-Khattab and others) establishes that where there is any legitimate doubt about the commission of the offense or the identity of the offender, the prescribed punishment is suspended. This rule reflects the Islamic preference for mercy in cases of genuine uncertainty, combined with the recognition that errors in applying hudud cannot be undone.

The use of the confession (iqrar) in criminal cases is addressed carefully. Ibn al-Qayyim follows the classical position that a voluntary, freely given confession to a hudud offense before a competent judge is the strongest evidence available — stronger even than testimony. However, a confession obtained through coercion (ikrah) is not legally valid: coercion destroys the legal effect of a confession because it eliminates the free will that makes the confession meaningful. He surveys the prophetic practice of verifying that confessions were freely made, including the case where the Prophet gave a man who confessed to fornication multiple opportunities to reconsider and retract his confession.

The chapter on oaths (aymin) examines the role of the yamin (oath by Allah) in Islamic judicial procedure. When evidence is evenly balanced — or when the claimant lacks sufficient evidence to prevail but has a reasonable claim — the judge may call for oaths from the parties. The rule 'The claimant must bring evidence; the one who denies need only swear' (al-bayyinatu ala al-mudda'i wal-yaminu ala man ankara — hadith in al-Bukhari, Muslim) establishes the baseline allocation of the burden of proof and the role of the oath in tipping the scales.

Ibn al-Qayyim's conclusion in At-Turuq al-Hukmiyyah is both legal and spiritual: the pursuit of justice in human governance is a religious obligation, not merely a political aspiration. A ruler or judge who fails to use all legitimate means to achieve justice — whether from laziness, ignorance, or corruption — is answerable to Allah for the injustice that results. Conversely, a ruler or judge who uses the tools of siyasah shar'iyyah with wisdom, knowledge, and God-consciousness, and who succeeds in bringing justice to the oppressed and accountability to the wrongdoer, has fulfilled one of the highest callings in Islamic public life.