delivered the opinion of the Court.
The issue before us is whether evidence gathered by the police after an unconstitutional motor vehicle stop should have been excluded in a prosecution for refusal to submit to a breathalyzer test. In this case, after the unlawful stop, a police officer made observations that gave him probable cause to believe the car’s driver was under the influence of alcohol. Based on those observations, the officer requested that the driver submit to the breath *306 alyzer test. The driver refused to take the test and was charged under the refusal statute, N.J.S.A. 39:4-50.4a. He then moved to suppress all evidence, including the officer’s observations, obtained following the motor vehicle stop. At a municipal court trial and again at a trial de novo in the Superior Court, Law Division, the driver’s suppression motions were denied, the evidence was admitted, and the driver convicted of refusing to submit to the breathalyzer test. The Appellate Division affirmed the conviction, concluding that the exclusionary rule did not require suppressing evidence garnered from the unconstitutional stop. We disagree and therefore reverse.
I.
A
During the early morning hours of July 20, 2003, the Ventnor City Police Department established a sobriety checkpoint on the eastbound side of Atlantic Avenue where it intersects with Newport Avenue in Ventnor City. 1 Police officers were directed to stop every fifth car and any illegally driven car, check the operators for signs of intoxication, and distribute literature on the dangers of drunk driving. To warn motorists of the approaching checkpoint, the police prominently placed a reflective road sign that read “DWI Checkpoint” immediately before the intersection of Atlantic and Avolyn Avenues, another such sign that read “Checkpoint Ahead” one block further east at the intersection of Atlantic and New Haven Avenues, and a final sign at the checkpoint itself. Beginning at Avolyn Avenue and ending at the DWI checkpoint, the police positioned orange construction cones along the 420-foot, three-block stretch of Atlantic Avenue to funnel motorists from two lanes into a single lane of traffic. There were no signs instructing motorists that turning onto Avolyn or New Haven *307 Avenue was prohibited, and there were no cones blocking such turns.
Lieutenant Robert Pettit, who was supervising the roadblock, commanded his officers to stop any vehicle that attempted to evade the checkpoint after entering the checkpoint zone, which began with the sign at Avolyn Avenue. That directive required officers to stop any vehicle making a turn onto an intersecting road within the zone. At approximately 12:48 a.m., defendant James Badessa, while traveling eastbound on Atlantic Avenue in his Ford Explorer, passed the sign that read “DWI Checkpoint,” and made a left turn onto Avolyn Avenue. After observing that turn, Officer Francisco O’Neill, who manned a “chase vehicle” to pursue anyone attempting to evade the checkpoint, activated his patrol car’s overhead lights and stopped defendant’s vehicle.
When he approached defendant’s car and asked for his license and registration, Officer O’Neill noticed that defendant’s eyes were glassy and that his speech was a little slow and slurred. The officer also smelled “a slight odor of an alcoholic beverage” coming from his breath. In response to questioning, defendant said that he had had two glasses of wine over dinner. Officer O’Neill then asked defendant to step out of his Ford Explorer and perform three psycho-physical tests. Defendant failed the stand-on-one-leg and heel-to-toe tests, but successfully recited the alphabet “without singing.” Based on the totality of his observations, Officer O’Neill arrested defendant for driving while under the influence (DWI).
At police headquarters, Officer O’Neill twice read to defendant the approved Division of Motor Vehicles form advising him that he was required by law to submit samples of his breath for testing and that his failure to comply would result in the issuance of a refusal summons. After defendant twice refused to submit to the breathalyzer test, the officer issued him summonses for DWI, in violation of N.J.S.A. 39:4-50, and refusal to submit to a breathalyzer test, in violation of N.J.S.A. 39:4r-50.4a.
*308 In Ventnor Municipal Court, defendant claimed that the stop of his vehicle was an unreasonable seizure in violation of the federal and state constitutions and moved to suppress all evidence obtained as a result of the illegal stop. The court denied the suppression motion and the ease proceeded to trial. After hearing testimony, the court acquitted defendant of DWI, but convicted him of refusal to take the breathalyzer test. On the refusal charge, the court suspended defendant’s driving privileges for six months, required that he attend twelve hours of instruction at an Intoxicated Driver Resource Center, and imposed fines totaling $579.
On de novo appeal to the Law Division, defendant again pressed his suppression motion, arguing that the motor vehicle stop was unconstitutional because the police did not give adequate warnings to motorists that, once they entered the checkpoint zone, they were not permitted to turn onto an intersecting street. The Law Division rejected that argument and found that once defendant entered into the checkpoint zone he knew or reasonably should have known that any attempt to evade the roadblock by turning onto an adjoining street would lead to a stop. Alternatively, even assuming an unconstitutional stop, the court concluded that defendant’s refusal to take the breathalyzer test was an independent, intervening act that was so attenuated from the purported constitutional violation that it did not “make good law or common sense” to invoke the exclusionary rule. Because defendant only challenged the constitutionality of the stop, the Law Division upheld his refusal conviction.
B.
Disagreeing with the Law Division, the Appellate Division held that the DWI checkpoint zone failed to provide adequate warning to motorists that a lawful turn onto an intersecting road would provide cause for a vehicular stop.
State v. Badessa,
373
N.J.Super.
84, 89-90,
However, despite its finding that defendant was unlawfully stopped, the panel determined that suppression of the evidence derived from the stop was not an appropriate remedy under the “ ‘attenuation doctrine.’ ”
Id.
at 90-93,
We granted defendant’s petition for certification challenging the Appellate Division’s holding that affirmed defendant’s refusal conviction based on evidence obtained by the police following the unlawful stop.
State v. Badessa,
182
N.J.
630,
II.
We must examine the proper scope of the exclusionary rule for a violation of the Fourth Amendment to the United States Constitution and Article I, Paragraph 7 of the New Jersey Constitution. Both provisions protect “[t]he right of the people” to be free from “unreasonable searches and seizures.” U.S. Const, amend. IV; N.J. Const, art. I, ¶ 7. In this case, the Appellate Division in effect determined that the stop of defendant’s ear was “unreasonable” within the meaning of those constitutional provisions. 3 That finding has not been challenged in this appeal. We decide solely whether the evidence gathered by the police after the invalid vehicular stop was properly admitted in defendant’s trial for refusing to take the breathalyzer examination.
The primary purpose of the exclusionary rule “is to deter future unlawful police conduct” by denying the prosecution the spoils of constitutional violations.
State v. Evers,
175
N.J.
355, 376,
Under the rule, the State is barred from introducing into evidence the “fruits” of an unlawful search or seizure by the police.
Wong Sun v. United States,
371
U.S.
471, 485, 83
S.Ct.
407, 416, 9
L.Ed.2d
441, 454 (1963). Those “fruits” include not only “tangible materials” seized, but also “testimony as to matters observed” in the course of a Fourth Amendment violation.
Ibid.; see also Murray v. United States,
487
U.S.
533, 536, 108
S.Ct.
2529, 2533,
However, the exclusionary rule will not apply when the connection between the unconstitutional police action and the evidence becomes “ ‘so attenuated as to dissipate the taint’ ” from the unlawful conduct.
Ibid,
(quoting
Nardone v. United States,
308
U.S.
338, 341, 60
S.Ct.
266, 268, 84
L.Ed.
307, 312 (1939)). In those circumstances, withholding from the finder of fact relevant evidence far removed from the constitutional breach is a cost not justified by the exclusionary rule.
United States v. Leon,
468
U.S.
897, 910-11, 104
S.Ct.
3405, 3414,
The State argues that defendant’s refusal to take the breathalyzer test and the evidence necessary to prosecute that offense is so attenuated from the unconstitutional stop of defendant’s ear that the exclusionary rule should not apply. We disagree.
The refusal statute requires that the State prove that
the arresting officer had probable cause to believe that the person had been driving or was in actual physical control of a motor vehicle on the public highways or quasi-public areas of this State while the person was under the influence of intoxicating liquor or a narcotic, hallucinogenic, or habit-producing drug or marijuana; whether the person was placed under arrest, if appropriate, and whether he refused to submit to the test upon request of the officer.
[N.J.S.A. 39:4-50.4a.]
Thus, the State must establish that “(1) the arresting officer had probable cause to believe that defendant had been operating a vehicle while under the influence of alcohol; (2) defendant was arrested for driving while intoxicated; and (3) defendant refused to submit to a breathalyzer test.”
State v. Wright,
107
N.J.
488, 490,
The State concedes that evidence obtained as a result of an unconstitutional vehicular stop must be suppressed in a DWI
*313
prosecution. The State allows that in such a case the police officer’s observations as well as the breathalyzer results would not be admissible to prove that a defendant was under the influence. The State, however, would permit the police observations suppressed in a DWI trial to be admitted in a refusal trial to prove that “the arresting officer had probable cause to believe that defendant had been operating a vehicle while under the influence of alcohol.”
Wright, supra,
107
N.J.
at 490,
Here, in both time and place, the “challenged evidence” sprang directly from the “illegal conduct.”
See Johnson, supra,
118
N.J.
at 653,
Under the present circumstances, we cannot subscribe to the State’s position that a breathalyzer refusal and DWI are distinct for purposes of an exclusionary rule analysis. DWI and refusal to submit to a breathalyzer test are part of a comprehensive statutory scheme contained in N.J.S.A 39:4-50 to -51, and may be viewed as two sides of the same statutory coin. The facts necessary to prosecute those two offenses are inextricably intertwined. After all, to secure a refusal conviction, the State must prove that “the arresting officer had probable cause to believe that the person had been driving” while under the influence and “was placed under arrest” for DWI. N.J.S.A 39:4-50.4a.
The principal purpose of a police officer advising a driver about the penalties that flow from refusing to take the breathalyzer test
*314
is to impel the driver to take the test so that the State will have the evidence necessary to prosecute a DWI charge.
See Wright, supra,
107
N.J.
at 504,
The Appellate Division found that because the exclusionary rule does not apply to resisting arrest or eluding the police following an illegal search or detention, the rule should not apply to a refusal charge. We do not find comparable this refusal case and a case involving the commission of a new crime that directly threatens public safety, such as resisting arrest or eluding the police.
See State v. Casimono,
250
N.J.Super.
173, 182-85,
Unlike this case, in
State v. Casimono, supra,
the defendant’s improper detention by the State Police did not warrant the exclusion of evidence of his resisting arrest because the defendant
*315
had committed an entirely new crime that placed the officers in physical danger. 250
N.J.Super.
at 183-84,
In conclusion, in the present matter the police officer’s observations at the scene of the illegal stop of defendant’s car were necessary to prove an essential element of refusal to take the breathalyzer test. Because that evidence must be suppressed, the State cannot prove a violation of the refusal statute. We see no reason to make an exception to the exclusionary rule in this case when the facts and policy concerns are sufficiently distinct from those in Casimono, supra, and Seymour, supra.
III.
Accordingly, we reverse the Appellate Division and remand to the Law Division for the entry of an order consistent with this opinion.
For reversal and remandment—Chief Justice PORITZ and Justices LONG, LaVECCHIA, ZAZZALI, ALBIN, WALLACE and RIVERA-SOTO—7.
Opposed—None.
Notes
The relevant facts, which are largely uncontested, come from the suppression hearing and trial in the Ventnor Municipal Court.
The State did not cross-petition to contest the Appellate Division's finding that the police unconstitutionally stopped defendant’s car.
To ensure that motorists are informed of what is expected of them when entering into a DWI checkpoint zone spanning intersecting roads, we suggest that the police post signs that instruct motorists that they must proceed to the checkpoint. For example, a sign might read: "PROCEED TO CHECKPOINT; NO TURNS PERMITTED."
