Also known as:habit · routine practice · habit or routine practice · FRE 406 · evidence of habit
Written by attorneys · grounded in primary & secondary sources — see below
Evidence of a person's or organization's consistent pattern of behavior that may be admitted to prove that the person or organization acted in accordance with the pattern on a particular occasion.
Sources & Authorities
How it applies
Common Examples
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Backup Script in Trade Secrets Case
Hannah Hughes stayed late at Hammer Construction finishing code modules. Coworker Imogen would testify that Hannah always ran an automated script copying files to the secure cloud at the end of every workday. The court admits the testimony to show Hannah followed the routine on the night in question.
Force Habit in Self-Defense Claim
Hector Hernandez faced an attacker and used a specific hold he had practiced weekly at the gym. Evidence of that routine practice is offered to show he acted consistently with it during the encounter. The court admits the evidence to prove conduct on the occasion in question.
Select any source to read its text and confirm it supports the definition.
Federal Rules
Restatements
Casebooks
Hiroshi Hasegawa drove the same route at the same speed every morning. In a state-law negligence action removed to federal court, evidence of this habit is introduced to prove his conduct on the day of the collision. The court applies federal evidence rules while following state substantive law.
Erie Railroad Co. v. Tompkins304 U.S. 64, 78–80 (1938)
Reputation Cross-Examination on Habit
Hazel Hoffman offered character evidence through reputation testimony. On cross-examination the prosecutor inquires into specific instances showing her routine practice of arriving late. The court permits the questions to test the basis of the reputation evidence.
Michelson v. United States335 U.S. 469, 484-485 (1948)
Confession Routine in Suppression Hearing
Harriet Hamilton gave a statement after officers followed their standard booking sequence. She moves to suppress the statement as obtained in violation of required procedures. Evidence of the officers' routine practice is considered in determining whether the statement was voluntary.
Dickerson v. United States530 U.S. 428 (2000)
Search Habit in Exclusion Motion
Hudson Partners' employee was searched pursuant to the company's daily security protocol. The defense seeks to exclude evidence obtained during the search. Testimony describing the organization's routine practice is offered to establish the manner in which the search occurred.
Herring v. United States555 U.S. 135 (2009)
Common questions
Frequently Asked
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What degree of regularity turns conduct into admissible habit evidence?+
The conduct must be specific and repetitive enough to qualify as a semi-automatic response to a particular situation. Occasional deviations during high-stress periods do not necessarily destroy the inference if the overall pattern remains consistent outside those conditions.
Supporting sources
Does Rule 406 require corroboration or an eyewitness for habit evidence?+
The rule expressly permits admission without corroboration or an eyewitness. The focus remains on whether the described conduct meets the threshold of regularity and specificity.
Supporting sources
How does habit evidence differ from character evidence?+
Habit describes a narrow, repetitive response to a specific situation. Character describes a general propensity to act in a certain way. Testimony about an automated daily procedure qualifies as habit rather than character.
Supporting sources
When may a court exclude habit evidence despite meeting the basic test?+
A court may exclude the evidence if the documented deviations are so frequent or tied to the precise conditions present on the occasion in question that the inference of consistent behavior becomes unreliable.
Supporting sources
386 U.S. 18, 87 S. Ct. 824, 17 L. Ed. 2d 705 (1967)Criminal Procedure
…fit to avail themselves of that opportunity. ..... "Now whether or not Mr. Teale had any other money at the time or was in the habit of concealing his money in different departments, I don't know, and ladies and gentlemen, you don't know, because you have not had any testimony from that witness stand, and the only person…