Law Enforcement Training Center | Constitutional Law,
Criminal Law & Search Procedures Verified Questions with
Detailed Rationales - 150 Questions
Section 1: Constitutional Law (Questions 1-15)
1 A police officer, without a warrant, enters a home to arrest a suspect for a felony drug offense. The officer has
probable cause to believe the suspect is inside. The arrest is made. Subsequently, the officer conducts a
'protective sweep' of the entire three-bedroom house, including closed closets and a basement storage room,
lasting about 15 minutes. No other persons are found, but the officer observes drug paraphernalia in plain view
in a closet. Which of the following best describes the constitutionality of the sweep and the seizure of the
paraphernalia?
A) The sweep was lawful as incident to arrest because the officer had probable cause to arrest the suspect inside
the home, and the plain view doctrine justifies the seizure.
B) The sweep was lawful under Maryland v. Buie because the officer had reasonable suspicion that the home
contained other individuals posing a danger, but the seizure of the paraphernalia is invalid because it was not in
plain view from a lawful vantage point.
C) The sweep exceeded the permissible scope of a protective sweep under Maryland v. Buie because it extended
beyond areas where a person could hide and lasted longer than necessary, rendering the seizure invalid as the
fruit of an unlawful search.
D) The sweep was unlawful because the officer lacked a warrant to enter the home, and the plain view doctrine
cannot justify seizure of evidence discovered during an unlawful entry.
Answer: C
Rationale: Under Maryland v. Buie (1990), a protective sweep incident to arrest is limited to a cursory visual
inspection of spaces where a person could hide, and must be no longer than necessary to dispel reasonable
suspicion of danger. A 15-minute search of closed closets and a basement storage room far exceeds that scope,
making the sweep unconstitutional. The plain view doctrine does not apply because the officer was not lawfully in
the area where the paraphernalia was seen.
2 A state statute prohibits any person convicted of a felony from possessing a firearm. A defendant, convicted of a
non-violent felony 20 years ago, is found in possession of a handgun at his home. He challenges the statute
under the Second Amendment. Which of the following is the most likely outcome under current Supreme Court
precedent?
A) The statute is unconstitutional because the Second Amendment protects the right to keep and bear arms in the
home for self-defense, and the defendant's felony conviction is too remote in time to justify a permanent ban.
B) The statute is presumptively constitutional under District of Columbia v. Heller as a 'longstanding prohibition'
on firearm possession by felons, and the defendant's challenge fails.
C) The statute is subject to strict scrutiny and must be narrowly tailored to a compelling government interest;
because a permanent ban on all felons is overbroad, it is unconstitutional.
D) The statute is unconstitutional as applied to the defendant because he has no history of violence and the ban
infringes on his core Second Amendment right.
Answer: B
Rationale: In District of Columbia v. Heller (2008) and McDonald v. Chicago (2010), the Supreme Court explicitly
,stated that 'longstanding prohibitions on the possession of firearms by felons' are presumptively lawful. The Court
has not applied tiers of scrutiny to such bans; rather, they are categorically upheld as consistent with historical
tradition. Thus, the statute is constitutional even as applied to a non-violent felon.
3 During a custodial interrogation, a suspect repeatedly states, 'I think I need a lawyer,' but does not explicitly say
'I want a lawyer.' The officers continue questioning and obtain a confession. The suspect moves to suppress the
confession. Under Edwards v. Arizona and its progeny, which of the following is most accurate?
A) The statement 'I think I need a lawyer' is not an unambiguous invocation of the right to counsel, so the
officers were not required to stop questioning.
B) Any reference to a lawyer, however equivocal, must be treated as an invocation of the right to counsel,
requiring cessation of questioning until counsel is present.
C) The statement is ambiguous, and the officers should have asked clarifying questions to determine if the
suspect wanted counsel before continuing.
D) The suspect's statement is an automatic invocation of the right to counsel under Miranda, and any subsequent
confession is inadmissible regardless of clarification.
Answer: C
Rationale: Under Davis v. United States (1994), a suspect must unambiguously invoke the right to counsel. An
ambiguous or equivocal statement, such as 'I think I need a lawyer,' does not require cessation of questioning.
However, officers may ask clarifying questions to resolve ambiguity. Because they did not, and continued
questioning, the confession may be suppressed if the statement was sufficiently ambiguous to require clarification.
Most circuits hold that such a statement is ambiguous, so the better answer is that clarification was needed.
4 A police officer stops a vehicle for a broken taillight. The officer has no reason to suspect any other illegal
activity. During the stop, the officer asks the driver for consent to search the vehicle. The driver consents. The
officer finds a loaded firearm under the passenger seat. The driver is charged with unlawful possession of a
firearm. The driver moves to suppress, arguing that the consent was invalid because the officer lacked
reasonable suspicion to extend the stop. Which of the following is most likely correct?
A) The consent was invalid because the officer impermissibly extended the duration of the traffic stop to ask for
consent without reasonable suspicion.
B) The consent was valid because asking for consent is not a seizure that requires reasonable suspicion, and the
stop was not prolonged beyond the time needed to issue the warning.
C) The consent was invalid because the officer did not inform the driver of his right to refuse consent.
D) The consent was valid only if the officer had reasonable suspicion of criminal activity before asking for
consent.
Answer: B
Rationale: Under Rodriguez v. United States (2015), a traffic stop may not be prolonged beyond the time reasonably
required to complete the mission of the stop. However, asking for consent to search does not itself extend the stop
if the request is made during the ordinary course of the stop (e.g., while waiting for a license check). Here, the
officer asked for consent during the stop, and the stop was not prolonged. Consent is voluntary; no warning of the
right to refuse is required. Thus, the consent is valid.
5 A state enacts a law requiring all law enforcement officers to obtain a warrant before using a drone to surveil the
curtilage of a home, unless exigent circumstances exist. A federal law enforcement agency argues that the state
law is preempted by federal law and the Fourth Amendment. Which of the following is the strongest argument
against the state law?
A) The state law imposes a greater restriction than the Fourth Amendment requires, and such restrictions are
invalid because they conflict with federal policy on drone surveillance.
,B) The state law is a valid exercise of police power and does not conflict with federal law; federal law
enforcement may still follow federal standards.
C) The state law violates the Supremacy Clause because federal law authorizes warrantless drone surveillance of
curtilage in certain circumstances.
D) The state law is unconstitutional because the Fourth Amendment does not require a warrant for aerial
surveillance of curtilage from public airspace.
Answer: B
Rationale: States may impose greater protections than the Fourth Amendment requires under their own constitutions
or statutes, as long as they do not conflict with federal law. Here, the state law does not prohibit federal officers
from acting under federal law; it only imposes a requirement on state officers. The Supremacy Clause does not
preempt state laws that are more protective of individual rights. Thus, the state law is likely valid.
6 A defendant is charged with robbery. At trial, the prosecution seeks to introduce a confession made by the
defendant to a cellmate, who was a paid informant. The defendant was not given Miranda warnings before
speaking to the cellmate. The defendant argues that the confession was obtained in violation of his Sixth
Amendment right to counsel. Which of the following is most accurate?
A) The confession is admissible because the Sixth Amendment right to counsel had not yet attached at the time
of the confession.
B) The confession is admissible because the cellmate was not a state actor, and the defendant voluntarily spoke
to him.
C) The confession is inadmissible because the state deliberately elicited incriminating statements from the
defendant after the right to counsel had attached, in violation of Massiah v. United States.
D) The confession is inadmissible because Miranda warnings were required before any custodial interrogation,
regardless of the identity of the questioner.
Answer: C
Rationale: Under Massiah v. United States (1964), once the Sixth Amendment right to counsel has attached (after
formal charges are filed), the government may not deliberately elicit incriminating statements from the defendant
without counsel present. Here, the cellmate was a paid informant acting at the government's direction, so the state
is responsible. The right had attached because the defendant was charged. Thus, the confession is inadmissible.
7 A police officer observes a vehicle weaving within its lane but not crossing any lines. The officer stops the
vehicle based solely on the weaving. The officer then issues a warning for reckless driving. During the stop, the
officer asks the driver to exit the vehicle, and upon doing so, the driver drops a small bag of cocaine. The driver
moves to suppress the cocaine, arguing that the stop was unconstitutional. Which of the following is most likely
correct?
A) The stop was unconstitutional because weaving within a lane does not give rise to reasonable suspicion of
criminal activity.
B) The stop was constitutional because weaving within a lane can support reasonable suspicion of drunk driving
or impairment.
C) The stop was unconstitutional because the officer lacked probable cause for a traffic violation.
D) The stop was constitutional because any traffic violation, no matter how minor, justifies a stop.
Answer: A
Rationale: Under the Fourth Amendment, a traffic stop requires reasonable suspicion that a traffic violation has
occurred or that criminal activity is afoot. Weaving within a lane, without crossing lines or other erratic behavior, is
generally insufficient to create reasonable suspicion of drunk driving or any other violation. Many courts have held
that such weaving is consistent with normal driving. Thus, the stop was unconstitutional, and the cocaine must be
suppressed as fruit of the poisonous tree.
, 8 A state law requires all individuals to submit to a breathalyzer test if they are lawfully arrested for driving under
the influence. The law imposes criminal penalties for refusal. A defendant refuses to take the test and is
convicted of refusal. He challenges the law under the Fifth Amendment. Which of the following is the most
likely outcome?
A) The law violates the Fifth Amendment privilege against self-incrimination because breathalyzer tests are
testimonial in nature.
B) The law is constitutional because breathalyzer tests are non-testimonial physical evidence, and the Fifth
Amendment does not apply.
C) The law violates the Fifth Amendment because it compels the defendant to provide evidence that could
incriminate him.
D) The law is constitutional because the state may criminalize refusal as part of its implied consent laws, and the
Fifth Amendment does not protect against physical evidence.
Answer: B
Rationale: The Supreme Court held in Birchfield v. North Dakota (2016) that breathalyzer tests are searches under
the Fourth Amendment but are reasonable incident to arrest for drunk driving. The Fifth Amendment privilege
against self-incrimination applies only to testimonial evidence, not physical evidence like breath. Thus, the state
may criminalize refusal without violating the Fifth Amendment. However, the Fourth Amendment requires a
warrant for blood tests, but breath tests are allowed without a warrant.
9 A police officer, without a warrant, places a GPS tracking device on a suspect's car while it is parked in a public
parking lot. The officer then monitors the car's movements for 30 days. The suspect is charged with drug
trafficking based on the GPS data. He moves to suppress the evidence. Under United States v. Jones (2012),
which of the following is most accurate?
A) The GPS tracking is not a search because the suspect had no reasonable expectation of privacy in his
movements on public roads.
B) The GPS tracking is a search because the officer physically trespassed on the suspect's property to install the
device, and the Fourth Amendment requires a warrant.
C) The GPS tracking is a search only if the monitoring was continuous for an extended period, and 30 days is
sufficient to require a warrant.
D) The GPS tracking is not a search because the car was parked in a public place, and the officer had probable
cause.
Answer: B
Rationale: In United States v. Jones (2012), the Supreme Court held that attaching a GPS device to a vehicle and
monitoring its movements constitutes a search under the Fourth Amendment because it is a physical trespass on
private property for the purpose of obtaining information. The government must obtain a warrant supported by
probable cause. The reasonable expectation of privacy test is not the sole measure; trespass is an independent basis
for a search.
10 A police officer responds to a domestic disturbance call. Upon arrival, the officer hears shouting and a scream
from inside a residence. The officer enters the home without a warrant and finds a victim with visible injuries.
The officer arrests the suspect for assault. The suspect moves to suppress evidence of the victim's injuries and
his own statements, arguing that the warrantless entry violated the Fourth Amendment. Which of the following
best describes the constitutionality of the entry?
A) The entry was lawful under the exigent circumstances exception because the officer had probable cause to
believe that someone was in imminent danger of serious bodily harm.
B) The entry was lawful only if the officer had a warrant; the exigent circumstances exception does not apply to
domestic disturbances.