Federal Criminal Motion to Suppress Evidence
IN THE UNITED STATES DISTRICT COURT
FOR THE [________________________________] DISTRICT OF [________________________________]
UNITED STATES OF AMERICA,
Plaintiff,
v. Case No. [________________________________]
[________________________________],
Defendant.
DEFENDANT'S MOTION TO SUPPRESS ILLEGALLY OBTAINED EVIDENCE AND INCORPORATED MEMORANDUM OF LAW
TABLE OF CONTENTS
- Introduction
- Procedural Posture
- Statement of Relevant Facts
- Standing
- Legal Standard
- Argument
- 6.1 The Warrant Was Constitutionally Defective
- 6.2 No Exception to the Warrant Requirement Applies (Warrantless Search)
- 6.3 The Search Violated Fed. R. Crim. P. 41
- 6.4 Defendant's Statements Must Be Suppressed
- 6.5 Fruit of the Poisonous Tree Doctrine Requires Exclusion
- 6.6 The Good-Faith Exception Is Inapplicable
- 6.7 Franks Hearing Is Warranted - Request for Evidentiary Hearing
- Conclusion and Prayer for Relief
- Certificate of Service
- Signature Block
1. INTRODUCTION
COMES NOW Defendant [________________________________] ("Defendant"), by and through undersigned counsel, and pursuant to the Fourth and Fifth Amendments to the United States Constitution, Rule 12(b)(3)(C) of the Federal Rules of Criminal Procedure, Rule 41 of the Federal Rules of Criminal Procedure, and all other applicable authority, respectfully moves this Court for an order suppressing:
(a) All physical evidence, documents, and electronic data seized on or about [__/__/____] from [________________________________] (the "Premises");
(b) All oral, written, and recorded statements made by Defendant subsequent to the unlawful search and/or seizure;
(c) All derivative evidence obtained directly or indirectly from the challenged search ("fruit of the poisonous tree"); and
(d) All observations, identifications, testimony, and investigative leads arising from the unconstitutional conduct.
In support of this Motion, Defendant respectfully submits the following Memorandum of Law.
2. PROCEDURAL POSTURE
- On [__/__/____], a grand jury returned a [____]-count Indictment charging Defendant with the following offenses:
| Count | Charge | Statute |
|---|---|---|
| [____] | [________________________________] | [________________________________] |
| [____] | [________________________________] | [________________________________] |
| [____] | [________________________________] | [________________________________] |
-
Defendant was arraigned on [__/__/____] and entered a plea of not guilty to all counts.
-
The Government produced initial discovery under Fed. R. Crim. P. 16 on [__/__/____], including the search-warrant affidavit, warrant, return, and inventory.
-
The Court set a deadline for pretrial motions of [__/__/____] pursuant to Fed. R. Crim. P. 12(c) and Local Criminal Rule [________________________________].
-
This Motion is timely filed within the period permitted by Fed. R. Crim. P. 12(b)(3) and the Court's scheduling order. Trial is set for [__/__/____].
3. STATEMENT OF RELEVANT FACTS
The following facts are supported by discovery materials, the search-warrant application and affidavit, the warrant return and inventory, and other evidence produced by the Government:
-
On [__/__/____], Agent(s) [________________________________] of the [________________________________] (federal agency) applied for a search warrant before ☐ Magistrate Judge ☐ District Judge [________________________________] for the Premises, described as [________________________________].
-
The warrant affidavit, sworn by [________________________________] ("Affiant"), relied primarily on:
☐ Information from a confidential informant ("CI-1") whose credibility was not independently corroborated
☐ An anonymous tip
☐ Surveillance observations from [________________________________]
☐ Records obtained via grand jury subpoena / administrative subpoena
☐ Other: [________________________________] -
The warrant was issued at [____] ☐ a.m. ☐ p.m. on [__/__/____] and authorized a search for: "[________________________________]."
-
Agents executed the warrant at [____] ☐ a.m. ☐ p.m. on [__/__/____]:
☐ With knock-and-announce entry
☐ Without announcing their presence, in violation of 18 U.S.C. § 3109
☐ Using a no-knock warrant
☐ Using forced entry -
During the search, Agents seized the following items:
- [________________________________]
- [________________________________]
- [________________________________]
- [________________________________] -
☐ Agents questioned Defendant for approximately [________________________________] ☐ with Miranda warnings ☐ without Miranda warnings. Defendant made the following alleged statements: [________________________________].
-
☐ Agents seized items not enumerated in the warrant, specifically: [________________________________].
-
☐ The search exceeded [____] hours in duration.
-
Additional relevant facts: [________________________________].
4. STANDING
Defendant has standing to challenge the search because:
☐ Defendant has a reasonable expectation of privacy in the Premises as the ☐ owner ☐ lessee ☐ authorized occupant ☐ overnight guest. Rakas v. Illinois, 439 U.S. 128, 143 (1978); Minnesota v. Olson, 495 U.S. 91, 96-97 (1990).
☐ The items seized were Defendant's personal property or effects. United States v. Salvucci, 448 U.S. 83, 91-92 (1980).
☐ Defendant was the target of the Government's investigation and the search was directed at obtaining evidence against Defendant. Rawlings v. Kentucky, 448 U.S. 98, 104-06 (1980).
5. LEGAL STANDARD
A. Fourth Amendment
The Fourth Amendment guarantees: "The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized." U.S. Const. amend. IV.
Warrantless searches are per se unreasonable, subject to a few specifically established and well-delineated exceptions. Katz v. United States, 389 U.S. 347, 357 (1967); Riley v. California, 573 U.S. 373, 382 (2014).
B. Fed. R. Crim. P. 12(b)(3)(C)
Rule 12(b)(3)(C) permits a defendant to move to suppress evidence obtained in violation of the Constitution, laws, or treaties of the United States. Such a motion "must be raised before trial" unless good cause is shown for late filing. Fed. R. Crim. P. 12(b)(3), (c)(3).
C. Fed. R. Crim. P. 41
Rule 41 governs search-warrant procedures, including the requirements for obtaining a warrant, the manner of execution (daytime execution unless specifically authorized, knock-and-announce, and return requirements), and the remedy of suppression for violations. Fed. R. Crim. P. 41(e)-(h).
D. Probable Cause
A warrant must be supported by probable cause — "a fair probability that contraband or evidence of a crime will be found in a particular place." Illinois v. Gates, 462 U.S. 213, 238 (1983). The reviewing court examines the totality of the circumstances presented to the issuing magistrate.
E. Particularity
The warrant must describe with particularity the place to be searched and the items to be seized. An overbroad or vague warrant constitutes an impermissible general warrant. Groh v. Ramirez, 540 U.S. 551, 557 (2004); Andresen v. Maryland, 427 U.S. 463, 480 (1976).
F. Exclusionary Rule
Evidence obtained in violation of the Fourth Amendment must be suppressed, along with all derivative evidence — the "fruit of the poisonous tree." Mapp v. Ohio, 367 U.S. 643 (1961); Wong Sun v. United States, 371 U.S. 471, 484-85 (1963). Three narrow exceptions may apply: (1) independent source, (2) inevitable discovery, and (3) attenuation of the taint. Murray v. United States, 487 U.S. 533 (1988); Nix v. Williams, 467 U.S. 431 (1984); Utah v. Strieff, 579 U.S. 232 (2016).
G. Good-Faith Exception
Under United States v. Leon, 468 U.S. 897 (1984), evidence obtained by officers acting in objectively reasonable reliance on a facially valid warrant may be admissible despite a later determination that the warrant was defective. However, the exception does not apply where: (1) the affiant misled the magistrate with false or reckless statements; (2) the magistrate wholly abandoned the judicial role; (3) the affidavit was "so lacking in indicia of probable cause as to render official belief in its existence entirely unreasonable"; or (4) the warrant was so facially deficient that officers could not reasonably rely upon it. Leon, 468 U.S. at 923.
6. ARGUMENT
6.1 The Warrant Was Constitutionally Defective
a. Lack of Probable Cause
-
The supporting affidavit relied almost exclusively on uncorroborated hearsay from ☐ CI-1 ☐ an anonymous tipster. Without independent verification or indicia of reliability, the affidavit fails to establish the "fair probability" required by Gates. Illinois v. Gates, 462 U.S. 213, 238 (1983).
-
The informant's veracity, reliability, and basis of knowledge were not established. The affidavit contained no information about prior occasions on which the informant provided accurate information, controlled purchases, surveillance corroboration, or other indicia of reliability.
-
The information supporting the warrant was stale. The alleged observations occurred approximately [____] days before the warrant application, and the affidavit contains no evidence of ongoing criminal activity to refresh the staleness. Sgro v. United States, 287 U.S. 206, 210 (1932); United States v. Wagner, 989 F.2d 69, 75 (2d Cir. 1993).
-
The affidavit failed to establish a sufficient nexus between the alleged criminal activity and the Premises to be searched. United States v. Carpenter, 360 F.3d 591, 594 (6th Cir. 2004) (en banc).
b. Overbreadth and Lack of Particularity
-
The warrant authorized seizure of broad categories of "documents and records" without temporal limitation, violating the particularity requirement. Groh v. Ramirez, 540 U.S. 551 (2004).
-
The warrant's description of items to be seized was so vague as to constitute an impermissible general warrant — "a general, exploratory rummaging in a person's belongings." Coolidge v. New Hampshire, 403 U.S. 443, 467 (1971).
-
☐ The warrant authorized seizure of electronically stored information without protocols limiting the search to relevant files, constituting a digital general warrant. United States v. Ganias, 824 F.3d 199, 217 (2d Cir. 2016) (en banc).
6.2 No Exception to the Warrant Requirement Applies (Warrantless Search)
☐ (Complete this section if challenging a warrantless search)
-
Consent: ☐ No consent was given. ☐ Consent was not voluntary, knowing, and intelligent under the totality of the circumstances. Schneckloth v. Bustamonte, 412 U.S. 218 (1973); United States v. Drayton, 536 U.S. 194, 207 (2002).
-
Exigent Circumstances: ☐ No exigency existed. Agents had ample time to obtain a warrant. Kentucky v. King, 563 U.S. 452 (2011).
-
Search Incident to Arrest: ☐ The search exceeded the scope permitted under Chimel v. California, 395 U.S. 752 (1969), and Arizona v. Gant, 556 U.S. 332 (2009), or the arrest itself was unlawful.
-
Automobile Exception: ☐ Agents lacked probable cause. Carroll v. United States, 267 U.S. 132 (1925); United States v. Ross, 456 U.S. 798 (1982).
-
Terry Stop/Frisk: ☐ Agents lacked reasonable articulable suspicion to justify the stop and/or lacked reasonable belief Defendant was armed and dangerous. Terry v. Ohio, 392 U.S. 1, 27 (1968).
-
Plain View: ☐ The incriminating nature was not immediately apparent. Horton v. California, 496 U.S. 128 (1990).
-
Inventory Search: ☐ The search did not follow standardized procedures. Colorado v. Bertine, 479 U.S. 367 (1987).
-
Border Search Exception: ☐ Not applicable or exceeded permissible scope. United States v. Ramsey, 431 U.S. 606 (1977).
6.3 The Search Violated Fed. R. Crim. P. 41
a. Execution Outside Authorized Hours
Rule 41(e)(2)(A)(ii) requires daytime execution (6:00 a.m. to 10:00 p.m.) absent specific judicial authorization for nighttime execution. Agents executed the warrant at [____] ☐ a.m. ☐ p.m., exceeding that authority.
b. Failure to Announce
Agents forcibly entered the Premises without first knocking and announcing their identity, authority, and purpose, contravening 18 U.S.C. § 3109 and rendering the search unreasonable. Wilson v. Arkansas, 514 U.S. 927, 934 (1995). No exigency justified dispensing with the knock-and-announce requirement. Richards v. Wisconsin, 520 U.S. 385, 394 (1997).
c. Seizure Beyond Warrant Scope
Agents seized items not enumerated or described in the warrant, constituting a general search. The following items were seized without authorization: [________________________________].
d. Failure to Leave Copy and Receipt
☐ Agents failed to comply with Rule 41(f)(1)(C), which requires that the officer executing the warrant give a copy of the warrant and a receipt for the property taken to the person from whom the property was taken.
6.4 Defendant's Statements Must Be Suppressed
-
As Fruit of the Poisonous Tree: All statements made by Defendant following the unconstitutional search are tainted and must be suppressed. Wong Sun, 371 U.S. at 484-85. Miranda warnings do not cure the taint of a prior Fourth Amendment violation where the causal connection has not been sufficiently attenuated. Brown v. Illinois, 422 U.S. 590, 603-04 (1975).
-
Miranda Violation: ☐ Agents subjected Defendant to custodial interrogation without Miranda warnings in violation of the Fifth Amendment. Miranda v. Arizona, 384 U.S. 436 (1966). The statements are inadmissible in the Government's case-in-chief.
-
Involuntariness: ☐ Defendant's statements were involuntary under the totality of the circumstances, including [________________________________]. Colorado v. Connelly, 479 U.S. 157, 167 (1986).
-
☐ Sixth Amendment: Defendant had been formally charged and Agents deliberately elicited statements without counsel present. Massiah v. United States, 377 U.S. 201 (1964).
6.5 Fruit of the Poisonous Tree Doctrine Requires Exclusion
-
All direct evidence — items seized during the unlawful search — must be suppressed.
-
All derivative evidence — subsequent investigative leads, identifications, laboratory results, financial records, and communications obtained as a consequence of the initial illegality — must likewise be excluded. Wong Sun, 371 U.S. at 487-88; Silverthorne Lumber Co. v. United States, 251 U.S. 385, 392 (1920).
-
No exception to the fruit-of-the-poisonous-tree doctrine applies:
- Independent Source: The Government cannot demonstrate an independent, untainted source for the derivative evidence. Murray v. United States, 487 U.S. 533 (1988).
- Inevitable Discovery: The Government cannot prove by a preponderance that the evidence would inevitably have been discovered through lawful means. Nix v. Williams, 467 U.S. 431 (1984).
- Attenuation: The connection between the illegality and the derivative evidence is not sufficiently attenuated by temporal proximity, intervening circumstances, or the purposefulness of the misconduct. Utah v. Strieff, 579 U.S. 232, 239 (2016) (applying Brown v. Illinois factors).
6.6 The Good-Faith Exception Is Inapplicable
-
☐ No warrant existed; the good-faith exception is categorically unavailable for warrantless searches. Leon, 468 U.S. at 922 n.23.
-
☐ The affidavit was "so lacking in indicia of probable cause as to render official belief in its existence entirely unreasonable." Leon, 468 U.S. at 923.
-
☐ The Affiant's omission of material facts and/or inclusion of false statements constitutes reckless disregard for the truth, vitiating any claim of good-faith reliance. Franks v. Delaware, 438 U.S. 154 (1978).
-
☐ The warrant was so facially deficient — lacking particularity or failing to state the items to be seized — that no reasonable officer could presume it to be valid. Groh v. Ramirez, 540 U.S. 551, 558 (2004).
-
☐ The magistrate wholly abandoned the judicial role, rendering reliance unreasonable. Lo-Ji Sales, Inc. v. New York, 442 U.S. 319, 326-27 (1979).
6.7 Franks Hearing Is Warranted (If Applicable)
☐ (Complete this section if requesting a Franks hearing)
-
Pursuant to Franks v. Delaware, 438 U.S. 154 (1978), Defendant requests a hearing to challenge the veracity of the warrant affidavit.
-
Defendant makes the required substantial preliminary showing that the Affiant ☐ knowingly ☐ recklessly included false statements or omitted material information, specifically:
- [________________________________]
- [________________________________] -
When the false statements are excised and/or the omitted facts included, the remaining content of the affidavit is insufficient to establish probable cause. Franks, 438 U.S. at 155-56.
-
This showing entitles Defendant to an evidentiary hearing at which the Affiant must testify and the Court must determine whether the affidavit, stripped of its falsities and supplemented with its omissions, establishes probable cause.
7. REQUEST FOR EVIDENTIARY HEARING
Pursuant to Fed. R. Crim. P. 12(d), Defendant respectfully requests an evidentiary hearing to resolve the factual disputes identified above. The hearing is necessary to address:
- The circumstances of the warrant application and issuance;
- The manner of warrant execution;
- The basis for the initial encounter / stop / seizure (if warrantless);
- The voluntariness of any purported consent;
- The circumstances of Defendant's detention and statements;
- The veracity of the warrant affidavit (Franks hearing); and
- Chain of custody and scope of the search.
Defendant anticipates calling the following witnesses:
- Affiant [________________________________]
- Executing Agent(s) [________________________________]
- [________________________________]
Estimated hearing time: [____] hours.
8. CONCLUSION AND PRAYER FOR RELIEF
WHEREFORE, Defendant respectfully prays that this Court:
A. Conduct an evidentiary hearing pursuant to Fed. R. Crim. P. 12(d);
B. Suppress all evidence obtained as a direct or indirect result of the unlawful search conducted on [__/__/____];
C. Suppress any and all statements made by Defendant following the search;
D. Suppress all derivative evidence, observations, identifications, and investigative leads;
E. Order the return of unlawfully seized property not subject to forfeiture;
F. Preclude the Government from referencing any suppressed evidence at trial; and
G. Grant such other and further relief as the Court deems just and proper.
9. CERTIFICATE OF SERVICE
I hereby certify that on [__/__/____], I electronically filed the foregoing Motion to Suppress with the Clerk of Court using the CM/ECF system, which will send notification of such filing to all counsel of record, including:
[________________________________], Assistant United States Attorney
United States Attorney's Office for the [________________________________] District of [________________________________]
[________________________________] (Address)
[________________________________] (Email)
[________________________________]
Attorney for Defendant
10. SIGNATURE BLOCK
Respectfully submitted,
[________________________________]
[________________________________], Esq.
☐ Federal Defender / ☐ CJA Panel Attorney / ☐ Retained Counsel
[________________________________] (Law Firm / Federal Defender Office)
[________________________________] (Bar Number)
[________________________________] (Address)
Telephone: [________________________________]
Email: [________________________________]
Attorney for [________________________________]
DECLARATION UNDER 28 U.S.C. § 1746 (If Required by Local Rule)
I, [________________________________], declare under penalty of perjury under the laws of the United States that the factual assertions in the foregoing Motion are true and correct to the best of my knowledge, information, and belief.
Executed on [__/__/____] at [________________________________].
[________________________________]
[________________________________]
SOURCES AND REFERENCES
- Fed. R. Crim. P. 12(b)(3)(C) — Pretrial motion to suppress: https://www.law.cornell.edu/rules/frcrmp/rule_12
- Fed. R. Crim. P. 41 — Search and seizure: https://www.federalrulesofcriminalprocedure.org/title-viii/rule-41-search-and-seizure/
- 18 U.S.C. § 3109 — Breaking doors or windows for entry or exit
- Mapp v. Ohio, 367 U.S. 643 (1961) — Exclusionary rule applies to states
- Wong Sun v. United States, 371 U.S. 471 (1963) — Fruit of the poisonous tree
- Terry v. Ohio, 392 U.S. 1 (1968) — Stop-and-frisk standard
- Katz v. United States, 389 U.S. 347 (1967) — Reasonable expectation of privacy
- Franks v. Delaware, 438 U.S. 154 (1978) — Challenging warrant affidavit veracity
- United States v. Leon, 468 U.S. 897 (1984) — Good-faith exception
- Illinois v. Gates, 462 U.S. 213 (1983) — Totality of the circumstances probable cause
- Groh v. Ramirez, 540 U.S. 551 (2004) — Particularity requirement
- Arizona v. Gant, 556 U.S. 332 (2009) — Search incident to arrest (vehicle)
- Riley v. California, 573 U.S. 373 (2014) — Cell phone search requires warrant
- Utah v. Strieff, 579 U.S. 232 (2016) — Attenuation doctrine
- DOJ Justice Manual, 9-16.000 — Federal plea and Rule 11 guidance: https://www.justice.gov/jm/jm-9-16000-pleas-federal-rule-criminal-procedure-11
About This Template
Criminal law paperwork covers every stage of a criminal case, from the first appearance and bail motion through pretrial motions, plea agreements, sentencing, and appeals. Deadlines in criminal cases are short and often unforgiving, and constitutional rights can be waived just by missing a filing. Using the right motion at the right time can mean the difference between evidence getting suppressed, charges getting reduced, or a case getting dismissed entirely.
Important Notice
This template is provided for informational purposes. It is not legal advice. We recommend having an attorney review any legal document before signing, especially for high-value or complex matters.
Last updated: April 2026