Hudud (plural of Hadd) refers to the "Limits" or boundaries set by Allah. In Islamic criminal law, it specifically denotes crimes and fixed punishments defined in the Quran or Sunnah for offenses that violate the "Rights of Allah" (such as theft, adultery, false accusation of adultery, drinking alcohol, and apostasy). These punishments are designed to act as a strong deterrent to protect society (religion, life, intellect, lineage, and property). However, they also have extremely strict evidentiary requirements,often requiring multiple eyewitnesses or a voluntary confession,making them difficult to implement in practice. The Prophet (PBUH) instructed judges to "avert the Hudud by doubts." The Hudud are the fixed punishments in Islamic law. They are called "limits" (hudud) because they are boundaries set by Allah that cannot be transgressed. The crimes that carry Hudud punishments are: theft (amputation of hand), highway robbery (execution or crucifixion), adultery (stoning to death for married, 100 lashes for unmarried), false accusation of adultery (80 lashes), drinking alcohol (40-80 lashes), and apostasy (execution, according to some scholars). The evidentiary requirements for Hudud are extremely strict. For theft, the stolen item must be above a certain value and taken from a secure place; the thief must not be in need. For adultery, four eyewitnesses to the act itself are required, which is nearly impossible. For false accusation, if the accuser cannot produce four witnesses, they are punished. These strict requirements reflect the Islamic emphasis on justice and the desire to avoid punishment whenever possible. The Prophet said: "Avert the Hudud from the Muslims as much as you can. If there is any way out, let the person go. For the leader to err in forgiveness is better than to err in punishment." This shows the priority of mercy. The Hudud serve as a deterrent. Their severity is meant to prevent crimes, not to be applied frequently. In practice, historically, Hudud punishments were rarely applied because the evidentiary requirements were so strict. The Hudud also protect essential values: religion, life, intellect, lineage, and property. By threatening severe punishment, they deter actions that would harm these fundamental interests of society. In modern times, the implementation of Hudud is debated. Many Muslim-majority countries do not apply them, citing the strict conditions, the difficulty of implementation, or the need for reform. Others call for their implementation as part of a comprehensive Islamic system. The Hudud remind that Islam takes justice seriously. It establishes limits to protect society, but it also emphasizes mercy, strict evidence, and the importance of avoiding punishment whenever possible. They call to a balanced approach that upholds justice while embodying mercy.