TCOLE key terms
TCOLE · Get comfortable with the vocabulary.
- Procedural justice
- Related: Discretion, Community policing
The principle that people judge police by the fairness of the process as much as by the outcome; it rests on giving voice, neutral decision-making, respectful treatment, and trustworthy motives.
- Discretion
- Related: Procedural justice, Reasonable suspicion
An officer's lawful authority to choose among reasonable actions - warn, cite, arrest, or refer - based on the law, department policy, and the specific facts of the situation.
- Law Enforcement Code of Ethics
- Related: Noble cause corruption, Bias-free policing
The profession's sworn statement of principle committing officers to serve all people, protect life and property, and uphold constitutional rights with integrity and honesty and without favoritism.
- Duty to intervene
- Related: Deadly force, De-escalation
The obligation of an officer to stop another officer's excessive force or serious misconduct when there is a realistic opportunity to do so, and to report the conduct through the chain of command.
- Noble cause corruption
- Related: Law Enforcement Code of Ethics, Chain of custody
Misconduct such as lying, planting evidence, or conducting unlawful searches that an officer justifies by claiming the ends - removing a dangerous person - justify the illegal means.
- Community policing
- Related: Procedural justice
An approach in which officers build lasting partnerships with residents and address underlying neighborhood problems, rather than only reacting to calls after harm has already occurred.
- Garrity protection
- Related: Duty to intervene, Miranda warnings
The rule that a public employee's compelled statements, given under threat of discipline, cannot be used against that employee in a later criminal prosecution.
- Bias-free policing
- Related: Discretion, Procedural justice
Making enforcement decisions based on behavior and specific suspect information rather than race, ethnicity, religion, gender, sexual orientation, or other protected characteristics.
- Reasonable suspicion
- Related: Terry frisk, Probable cause
Specific, articulable facts plus rational inferences that would lead a reasonable officer to believe criminal activity is occurring or has occurred; it justifies a brief investigative detention.
- Probable cause
- Related: Reasonable suspicion, Warrant affidavit
Facts and circumstances that would lead a reasonable person to believe an offense has been committed and that a particular person committed it; it is required for an arrest or warrant.
- Terry frisk
- Related: Reasonable suspicion, Plain view doctrine
A limited pat-down of a detained person's outer clothing for weapons, permitted when the officer reasonably believes the person is armed and dangerous; it is not a full search.
- Miranda warnings
- Related: Exclusionary rule, Article 15.17 magistrate warnings
Advisements of the rights to remain silent, to have counsel, and to appointed counsel that must precede custodial interrogation; statements taken without them are usually inadmissible.
- Exclusionary rule
- Related: Consent search, Miranda warnings
The doctrine that evidence obtained through an unconstitutional search or seizure is generally inadmissible at trial, subject to exceptions such as independent source and good faith.
- Plain view doctrine
- Related: Search incident to arrest, Exigent circumstances
Allows an officer who is lawfully present to seize an item without a warrant when its incriminating character is immediately apparent and the officer has a lawful right of access.
- Exigent circumstances
- Related: Consent search, Plain view doctrine
Urgent conditions - imminent destruction of evidence, hot pursuit, or an immediate threat to life - that make obtaining a warrant unreasonable and allow warrantless entry or search.
- Search incident to arrest
- Related: Exclusionary rule, Plain view doctrine
The authority to search a lawfully arrested person and the area within immediate reach for weapons and evidence, justified by officer safety and preventing destruction of evidence.
- Consent search
- Related: Exigent circumstances, Exclusionary rule
A warrantless search allowed when a person with authority gives voluntary, unambiguous consent; consent may be limited in scope and may be withdrawn at any time.
- Article 14.01, Code of Criminal Procedure
- Related: Probable cause, Article 15.17 magistrate warnings
Texas statute permitting a peace officer to arrest without a warrant for a felony or a breach of the peace committed in the officer's presence or within the officer's view.
- Article 15.17 magistrate warnings
- Related: Miranda warnings, Article 14.01, Code of Criminal Procedure
Texas requirement that an arrested person be taken before a magistrate within 48 hours and warned of the right to remain silent, the right to counsel, and the right to appointed counsel.
- Culpable mental states
- Related: Probable cause
The Texas Penal Code's four levels of intent - intentionally, knowingly, recklessly, and with criminal negligence - one of which must accompany the prohibited act for most offenses.
- Warrant affidavit
- Related: Probable cause, Article 14.01, Code of Criminal Procedure
A sworn written statement of facts presented to a magistrate to show probable cause for an arrest or search warrant; false statements in it can invalidate the resulting warrant.
- Chain of custody
- Related: Offense report, Preliminary investigation
The documented, unbroken record of who handled a piece of evidence, when, and for what purpose, from collection through trial, showing it was not altered or substituted.
- Standardized field sobriety tests
- Related: Probable cause, Implied consent
The three validated roadside tests - horizontal gaze nystagmus, walk-and-turn, and one-leg stand - used with other observations to build probable cause in impaired-driving investigations.
- Implied consent
- Related: Standardized field sobriety tests, Warrant affidavit
Texas law treating a driver's license as consent to provide a breath or blood specimen after a lawful DWI arrest; refusal can lead to license suspension and to officers seeking a warrant.
- Body-worn camera
- Related: Offense report, Duty to intervene
A recording device worn by officers that captures encounters in the field, providing evidence, supporting report accuracy, and subject to retention and public release rules.
- Active shooter response
- Related: Deadly force, De-escalation
The tactic for incidents in which someone is actively killing or trying to kill people; the first officers to arrive move directly to locate and stop the threat without waiting for others.
- Preliminary investigation
- Related: Chain of custody, Offense report
The first officer's actions at a scene: making it safe, aiding the injured, identifying witnesses, protecting evidence, and documenting what was observed and done.
- Eyewitness identification
- Related: Preliminary investigation, Offense report
The process of having a witness pick a suspect from a photo array or live lineup, conducted blinded and sequentially where possible to reduce suggestion and mistaken identification.
- Offense report
- Related: Chain of custody, Preliminary investigation
The official written record of an incident covering facts, statements, evidence, and actions taken; it supports prosecution and may be used to refresh an officer's memory in court.
- Objective reasonableness
- Related: Deadly force, De-escalation
The Graham v. Connor standard judging force by what a reasonable officer on scene would do, weighing the severity of the crime, the threat posed, and active resistance or flight.
- Deadly force
- Related: Objective reasonableness, Duty to intervene
Force that the actor intends or knows creates a substantial risk of causing death or serious bodily injury; its use by officers is limited to situations the law specifically authorizes.
- De-escalation
- Related: Crisis intervention team, Objective reasonableness
Using time, distance, cover, tactical repositioning, and clear communication to reduce the intensity of an encounter and avoid or minimize force when it is feasible to do so.
- Crisis intervention team
- Related: De-escalation, Suicide by cop
A model in which specially trained officers partner with mental health providers to respond to people in behavioral crisis, aiming to reduce injuries and divert people from jail.
- Positional asphyxia
- Related: Conducted energy weapon, Rendering aid
Death caused by a body position that restricts breathing, such as pressure on the back or chest of a prone, restrained person; restrained subjects must be moved off their stomachs quickly.
- Conducted energy weapon
- Related: De-escalation, Rendering aid
A less-lethal device that delivers electrical current to disrupt muscle control and gain compliance from a resistant subject, subject to policy limits on when it may be used.
- Critical incident stress
- Related: Peer support
The physical and emotional reactions - nausea, exhaustion, intrusive thoughts, sleep loss - that officers may experience after a traumatic event such as a shooting or a child's death.
- Naloxone
- Related: Rendering aid
An opioid antagonist carried by many officers and given by nasal spray or injection to reverse a suspected opioid overdose, restoring breathing until medical help arrives.
- Suicide by cop
- Related: Crisis intervention team, De-escalation
A situation in which a person deliberately behaves in a threatening way toward officers, hoping to force them to use deadly force and end the person's own life.
- Rendering aid
- Related: Positional asphyxia, Deadly force
The duty to provide first aid or summon medical help for anyone injured during an encounter or in custody, once the scene is secure and the officer can do so safely.
- Peer support
- Related: Critical incident stress
A program in which trained fellow officers provide confidential emotional and practical help to colleagues after critical incidents, aiming to reduce stigma and encourage early help-seeking.