Criminal procedure
Criminal investigation
Arrest warrant  · Search warrant
Probable cause
Knock and announce
Exigent circumstance
Search and seizure
Arrest  · Right to silence
Miranda warning (U.S.)
Grand jury
Criminal prosecution
Statute of limitations
Criminal jurisdiction
Inquisitorial system
Adversarial system
Arraignment  · Indictment
Nolo contendere
Plea bargain
Rights of the accused
Right to a fair trial
Presumption of innocence
Jury trial  · Speedy trial
Habeas corpus  · Bail
Exclusionary rule (U.S.)
Self-incrimination
Double jeopardy
Conviction and sentencing
Mandatory sentencing
Suspended sentence
Parole  · Probation
Tariff (UK)  · Life licence (UK)
Cruel and unusual punishment
Capital punishment
Execution warrant
Related areas of law
Criminal defenses
Criminal law  · Evidence
Civil procedure

A knock and announce warrant, in the American law of criminal procedure, requires that the officer tasked with the responsibility of executing the warrant must knock on the door of the home to be entered for a search or arrest, and to announce their purpose. The general rule is that a warrant must have these requirements unless the officer requesting the warrant can demonstrate to the issuing judge that requiring such a procedure would endanger human life or safety, or would create a likelihood that evidence will be destroyed. An officer executing a knock and announce warrant may nonetheless enter the home without knocking or announcing if exigent circumstances are present at the time the warrant is executed. Image File history File links SmallLadyJustice. ... Criminal procedure refers to the legal process for adjudicating claims that someone has violated the criminal law. ... An arrest warrant is a warrant issued by a public officer which authorizes the arrest and detention of an individual. ... A search warrant is a written warrant issued by a judge which authorizes the police to conduct a search of a person or location for evidence of a criminal offense. ... In United States criminal law, probable cause refers to the standard by which a police officer may make an arrest, conduct a personal or property search or obtain a warrant. ... An exigent circumstance, in the American law of criminal procedure, allows law enforcement to enter a structure without a warrant, or if a they have a knock and announce warrant, without knocking and waiting for refusal under certain circumstances. ... Search and seizure is a legal p. ... The Chicago Police Department arrests a man A protester is arrested during a demonstration. ... The right to silence is a legal protection enjoyed by people undergoing police interrogation or trial in certain countries. ... The Miranda warning is given by police in the United States to suspects who are in police custody and are going to be asked guilt seeking questions. ... A grand jury is a type of common law jury responsible for investigating alleged crimes, examining evidence, and issuing indictments if they believe that there is enough evidence for a trial to proceed. ... Criminal procedure refers to the legal process for adjudicating claims that someone has violated the criminal law. ... A statute of limitations is a statute in a common law legal system setting forth the maximum period of time, after certain events, that legal proceedings based on those events may begin. ... Criminal jurisdiction is a term used in the law of criminal procedure to describe the power of a court to hear a case brought by the state accusing a criminal defendant of a violation of the law of the geographic area in which the court is located. ... An inquisitorial system is a legal system where the court or a part of the court is actively involved in determining the facts of the case, as opposed to an adversarial system where the role of the court is solely that of an impartial referee between parties. ... The adversarial system (or adversary system) of law is the system of law, generally adopted in common law countries, that relies on the skill of the different advocates representing their partys positions and not on some neutral party, usually the judge, trying to ascertain the truth of the case. ... Arraignment is a common law term for the formal reading of a criminal complaint, in the presence of the defendant, to inform him of the charges against him. ... In the common law legal system, an indictment is a formal charge of having committed a serious criminal offence. ... In law, a plea of nolo contendere means that the defendant does not admit the charge, but does not dispute it either. ... A plea bargain is an agreement in a criminal case in which a prosecutor and a defendant arrange to settle the case against the defendant. ... Headline text The rights of the accused is a class of rights in that apply to a person in the time period between when they are formally accused of a crime and when they are either convicted or acquitted. ... The Right to a fair trial is an essential right in all countries respecting the rule of law. ... Presumption of innocence is a legal right that the accused enjoys in criminal trials in many modern nations. ... A jury trial is a trial in which the judge of the facts, as opposed to the judge of the law, is a jury, made up of citizens who are usually randomly selected and are generally not legal professionals. ... In criminal law, the right to a speedy trial can be used as either a procedural defense or a substantive defense in which a defendant argues that they should not be held criminally liable for actions which broke the law, because the prosecuting attorney failed to bring the case to... In English Common Law habeas corpus is the name of several writs which may be issued by a judge ordering a prisoner to be brought before the court. ... Traditionally, bail is some form of property deposited or pledged to a court in order to persuade it to release a suspect from jail, on the understanding that the suspect will return for trial or forfeit the bail (skipping bail, or jumping bail, is also illegal). ... In United States constitutional law, the exclusionary rule is a legal principle holding that evidence collected or analyzed in violation of the U.S. Constitution is not admissible for a criminal prosecution in a court of law (that is, it cannot be used in a criminal trial). ... It has been suggested that this article or section be merged with Right to silence. ... Double jeopardy is a procedural defense (and, in the United States and India, a constitutional right) that forbids a defendant from being tried a second time for a crime, after having already been tried for the same crime. ... In law, a sentence forms the final act of a judge-ruled process, and also the symbolic principal act connected to his function. ... A mandatory sentence is a judicial decision setting the punishment to be inflicted on a person convicted of a crime where judicial discretion is limited by law. ... A suspended sentence is a legal construct. ... Parole can have different meanings depending on the context. ... Probation is the suspension of a prison or jail sentence - the criminal who is on probation has been convicted of a crime, but instead of serving prison time, has been found by the Court to be amenable to probation and will be returned to the community for a period in... Under British criminal law, a tariff is the minimum period that a person serving an indefinite prison sentence must serve before that person becomes eligible for parole. ... Life licence is a term used in the British criminal justice system for the conditions under which a prisoner sentenced to life in jail may be released. ... The statement that the government shall not inflict cruel and unusual punishment for crimes is found in the English Bill of Rights signed in 1689 by William of Orange and Queen Mary II who were then the joint rulers of England following the Glorious Revolution of 1688. ... Capital punishment, also called the death penalty, is the execution of a convicted felon as a punishment for a crime (often called a capital offence or a capital crime). ... An execution warrant is a warrant which authorizes the execution or capital punishment of an individual. ... Criminal law (also known as penal law) is the body of common law that punishes criminals for committing offences against the state. ... The law of evidence governs the use of testimony (eg. ... Civil procedure is the body of law that sets out the process that courts will follow when hearing cases of a civil nature (a civil action). These rules govern how a lawsuit or case may be commenced, what kind of service of process is required, the types of pleadings or... In law, a warrant can mean any authorization. ... Law (from the Old Norse lagu) in politics and jurisprudence, is a set of rules or norms of conduct which mandate, proscribe or permit specified relationships among people and organizations, intended to provide methods for ensuring the impartial treatment of such people, and provide punishments of/for those who do... Criminal procedure refers to the legal process for adjudicating claims that someone has violated the criminal law. ... The Chicago Police Department arrests a man A protester is arrested during a demonstration. ... Exigent Circumstances is a term in American Law. ...