Police Magazine Logo
MenuMENU
SearchSEARCH

Avoid Defective Search Warrants

Flaws in a warrant that are so obvious you should have recognized them can doom your search and seizure and eliminate the usual "good faith" protection.

November 11, 2010
Avoid Defective Search Warrants

 

6 min to read


Did you know that even with a search warrant signed by a magistrate, your search and seizure could later be ruled unconstitutional, with a resulting loss of criminal evidence and risk of civil liability?

Search warrants certainly provide the greatest protection against these risks, but flaws in the warrant that are so obvious you should have recognized them can doom your search and seizure and eliminate the usual "good faith" protection.

Ad Loading...

Bad Warrants and Good Faith

Courts have a "strong preference" that officers conduct searches and seizures under authority of judicial warrants. (U.S. v. Ventresca) This being the case, courts will usually overlook minor errors in an affidavit or warrant and make allowance for insignificant mistakes made during the service of the warrant. The so-called "good-faith" doctrine permits the introduction of evidence and a defense to liability if the officer's conduct was "objectively reasonable" and undertaken in good-faith reliance on the magistrate's prior approval of the search. (U.S. v. Leon)

However, if the warrant application is so lacking in probable cause that a reasonable officer should have known a search warrant based on that affidavit would be invalid, searching officers are not entitled to a good-faith defense. Further, where the warrant fails to describe the premises to be searched or the items to be seized, or is so overbroad on its face that officers should have realized the problem, their good faith in relying on it will not be considered objectively reasonable, causing potential suppression and liability risks. (Malley v. Briggs)

The Problem of "Overbreadth"

The text of the Fourth Amendment imposes a requirement that search warrants "particularly describe" the places to be searched and the property to be seized. This means that a warrant must authorize officers to search only in the specific places described in detail, and to seize only the specific items of enumerated property for which probable cause is set forth in the supporting affidavit. The U.S. Supreme Court describes this rule:

Ad Loading...

"General warrants, of course, are prohibited by the Fourth Amendment. The problem posed by the general warrant is of a general, exploratory rummaging in a person's belongings. The Fourth Amendment addresses the problem by requiring a 'particular description' of the things to be seized...As to what is to be taken, nothing is left to the discretion of the officer executing the warrant." (Andresen v. Maryland)

"The uniformly applied rule is that a search conducted pursuant to a warrant that fails to conform to the particularity requirement of the Fourth Amendment is unconstitutional." (Massachusetts v. Sheppard)

Particularity Shortcuts

When writing affidavits and proposed search warrants, it's tempting to look for ways to reduce the time and effort necessary to get the warrant issued. Language from a previous warrant and affidavit may be cut and pasted into a new one. As long as the language fits, there's nothing wrong with this shortcut.

The problem is that cutting and pasting can lead to invalid warrants, either because the pasted information is put in the wrong place or because it produces an overbroad warrant not supported by probable cause as to each particular item sought to be seized. Two cases illustrate these dangers.

Ad Loading...

Groh v. Ramirez

A BATF agent had PC to believe that Jeff Groh had illegal weapons and explosives at his Montana ranch house. The agent prepared an affidavit and a search warrant. The magistrate signed the warrant, apparently not reading it any more carefully than the agent had.

The face of the warrant described the place to be searched with great particularity, but in the space where the property to be seized was supposed to have been listed, the agent had apparently pasted the description of the premises. As a result, the warrant did not authorize the seizure of any guns or explosives, but instead purported to authorize the seizure of "a single dwelling residence, two-story in height, blue in color, and has two additions attached to the east."

Relying on this warrant, BATF and local officers entered and searched the Groh home. They were later sued for violating Groh's Fourth Amendment right against unreasonable search. The Supreme Court upheld liability against the agent who obtained the warrant and led the search. The court said this:

"The warrant is plainly invalid. On the requirement of particularity, the warrant failed altogether. The Fourth Amendment requires particularity in the warrant. A warrant that fails to conform to the particularity requirement of the Fourth Amendment is unconstitutional. The warrant was deficient in particularity because it provided no description of the type of evidence sought." (Groh v. Ramirez)

Ad Loading...

Millender v. County of Los Angeles

Sheriff's deputies investigating a domestic violence assault were told by the victim that the suspect had shot at her with a black sawed-off shotgun with a pistol grip. After learning that the suspect was a known gang member, the deputies applied for and obtained a search warrant for his residence, authorizing them to search for and seize handguns, long guns, ammunition, firearms records, and evidence showing street gang membership. They completed the search, seizing a variety of firearms and other materials. Residents of the home sued for violation of their Fourth Amendment rights, and the federal appeals court upheld their right to sue. The court said that a warrant cannot authorize the seizure of items as to which there is no nexus to criminal activity, and that deputies should have known their warrant was unconstitutionally overbroad:

"There is no dispute that the deputies had probable cause to search for and seize the black sawed-off shotgun with a pistol grip. But the affidavit does not set forth any evidence indicating that the suspect owned or used other firearms, that such firearms were contraband or evidence of a crime, or that such firearms were likely to be present at the residence. Nothing in the warrant or affidavit provides any basis for concluding there was probable cause to search for or seize the generic class of firearms and related materials listed in the search warrant." (Millender v. County of Los Angeles)

It may be that the affiant deputy (author of the warrant) simply cut and pasted generic language from "standard" weapons-related and gang-related affidavits from prior investigations. The court's opinion does not make this clear. But the deputies and their employer are left to face potential civil liability because the warrant sought weapons and other materials for which there was no probable cause set forth in the affidavit.

Plain View?

Ad Loading...

If you apply for and obtain a properly limited search warrant that authorizes you to search for and seize only the particular items for which you have stated PC, you can still seize other recognizable contraband or evidence you see in plain view while conducting the search. (Horton v. California) The key is to confine your warrant to those specific items for which you demonstrate PC in your affidavit, and preserve the option to make plain-view seizures of other evidentiary items during your search.

Devallis Rutledge is a former police officer and veteran prosecutor who currently serves as Special Counsel to the Los Angeles County District Attorney.

Subscribe to our newsletter

More Patrol

Police officer in a darkened hallway holding a flashlight and headline 5 Things to Know When Buying Patrol Lights, and POLICE logo.
PatrolApril 16, 2026

5 Things to Know When Buying Patrol Lights

Whether it’s time to buy a personal patrol light or make the decision for the next department-issued patrol light, what do you need to know? How do you weigh the different variables and make the best choice?

Read More →
Group of men and women seated in a circle around a room as one woman stands and leads discussion.
PatrolApril 9, 2026

Warriors Heart’s Mission to Serve America’s Veterans and First Responders

Warriors Heart works closely with federal and community partners to expand treatment options for veterans and first responders. By combining specialized clinical care with a peer-driven recovery environment, the program helps warriors rebuild strength, restore relationships, and rediscover purpose.

Read More →
Black background with police card lights and logo for POLICE, with headline in yellow: How are LE Boots Different for Women
Patrolby Wayne ParhamApril 9, 2026

How are LE Boots Different for Women?

Boots fit differently for men and women, so how are law enforcement boots for women designed differently from those worn by men? In this video, Kyle Ferdyn, of Garmont Tactical, shares all the details.

Read More →
Ad Loading...
Man standing in desert talking on radio.
PatrolApril 9, 2026

Motorola Solutions Extends Resilient, Mission-Critical Communications and AI with T-Satellite from T-Mobile

A collaboration between Motorola Solutions and T-Mobile helps deliver uninterrupted situational awareness and access to AI wherever the mission leads, enabled by satellite connectivity for Motorola Solutions' APX NEXT smart radios.

Read More →
Las Vegas skyline at dusk with headline 2026 Vision FirstNet Users Summit, dates for the event, and diagonally at bottom right words Registration Open.
PatrolApril 9, 2026

Registration Now Open for 2026 Vision FirstNet Users Summit

Registration is now open for the 2026 Vision FirstNet Users Summit. The Summit is an opportunity to connect with local and federal leaders, specifically the FirstNet Authority, which is hosting a track at the event this year.

Read More →
Two chest rig packs in camo in front of a blue themed SWAT background and a logo for Tasmanian Tiger.
PatrolApril 6, 2026

Tasmanian Tiger Launches Modular Chest Rig 4xM4 & Modular Chest Rig Pack for LE

Tasmanian Tiger has expanded its Modular Load-Carrying System with the new Modular Chest Rig 4xM4 and Modular Chest Rig Pack. Both provide adaptable, low-profile load options for military, law enforcement, and SWAT missions.

Read More →
Ad Loading...
Security worker watching computer monitors, with a white area at top with a logo for ZeroEyes.
PatrolApril 2, 2026

ZeroEyes Expands from AI Gun Detection to Knife Detection & Suspect Tracking

ZeroEyes has launched three new product categories to extend beyond firearms to address additional acute safety threats and basic security needs. Knife detection and suspect tracking are now also available.

Read More →
GALLS logo against a white box set atop a blue-tinted map of Tennessee.
PatrolApril 2, 2026

GALLS Acquires CMS Uniforms

GALLS has acquired CMS Uniforms and Equipment, Inc., a prominent regional provider based in Nashville, Tennessee. CMS Uniforms, founded in 2000, has built a reputation for delivering stellar customer service and managing complex uniform programs for more than 670 accounts.

Read More →
Police drone hovering over its charging nest against a blue sky background.
PatrolMarch 26, 2026

Brinc Unveils Guardian, Launching the Next Era of Drone as First Responder

Brinc’s new Guardian delivers 24/7 operations, Starlink connectivity, and a robotic charging nest that can swap batteries and change payload configurations without human intervention.

Read More →
Ad Loading...
image of trooper, shown from waist down, standing beside a police cruiser along the road and at right a headline Slow Down Move Over.
PatrolMarch 19, 2026

Colorado State Patrol Releases 2025 Struck-By Analysis

The Colorado State Patrol, after analyzing its 2025 struck-by incidents, identified one area for improvement: using traffic cones to provide advanced warning before the cruiser's location. Here is the agency’s final data.

Read More →