Opinion for the Court filed by Chief Judge SENTELLE.
Four District of Columbia citizens (appellants) filed a motion for a preliminary injunction to enjoin further implementation of a police checkpoint program in the District of Columbia. The district court denied the motion for a preliminary injunction, holding that the appellants failed to show either irreparable harm or a substantial likelihood of success on the merits. Because we hold that the appellants’ showing of irreparable harm is sufficient, and conclude that appellants have shown a substantial likelihood of success, we reverse the district court and remand for further proceedings.
I. BACKGROUND
The neighborhood safety zone (NSZ) program was created by the Metropolitan Police Department (MPD) in response to the violence that has plagued the Trinidad neighborhood in Northeast Washington, D.C. for many years. Before this case arose, Trinidad had recently been the scene of twenty-five assaults involving firearms, five of which resulted in deaths, and six of which involved the use of vehicles. Shortly after a triple homicide in the Trinidad neighborhood on May 31, 2008, the MPD designated a portion of the neighborhood an NSZ. Pursuant to MPD Special Order 08-06, issued June 4, 2008, MPD implemented the program and erected eleven vehicle checkpoints over the course of five days at locations around the perimeter of the NSZ. This first implementation of the checkpoints took place from June 7 to June 12, 2008. On July 19, 2008, nearly a month after appellants commenced this action in the district court, the Commander of MPD’s Fifth District, in response to a series of violent attacks that morning in Trinidad, requested and was granted approval for another NSZ in the Trinidad neighborhood. This second implementation of the NSZ program originally was to run from July 19 to July 24, but was extended until July 29, 2008.
During the first implementation of the NSZ program, Special Order 08-06 set forth the parameters of the program. According to the Special Order, the original primary purpose of the program was “to provide high police visibility, prevent and deter crime, safeguard officers and community members, and create safer District of Columbia neighborhoods.” This Special Order also governed the police officers’ conduct at the checkpoints during the first *1287 implementation of the NSZ checkpoint program. According to the Special Order, motorists were to receive advance notice of checkpoints, which were to be marked with signs around the borders of the NSZ as well as “barricades, lights, cones, and/or flares.” Officers were to stop all vehicles attempting to gain access to the NSZ area. Officers were not to stop vehicles attempting to leave the NSZ area without particularized suspicion. Officers also were not to stop individuals seeking to enter the NSZ area on foot. When motorists attempting to gain entry into the NSZ area were stopped at the checkpoint, officers were required to identify themselves to motorists and inquire whether the motorists had “legitimate reasons” for entering the NSZ area. Legitimate reasons for entry fell within one of six defined categories: the motorist was (1) a resident of the NSZ; (2) employed or on a commercial delivery in the NSZ; (3) attending school or taking a child to school or day-care in the NSZ; (4) related to a resident of the NSZ; (5) elderly, disabled or seeking medical attention; and/or (6) attempting to attend a verified organized civic, community, or religious event in the NSZ. If the motorist provided the officer with a legitimate reason for entry, the officer was authorized to request additional information sufficient to verify the motorist’s stated reason for entry into the NSZ area. Officers denied entry to those motorists who did not have a legitimate reason for entry, who could not substantiate their reason for entry, or who refused to provide a legitimate reason for entry.
Motorists who failed to provide sufficient information were refused entry into the neighborhood in their vehicles, although motorists were not charged with a criminal offense if they failed to provide a legitimate reason for entry. Officers could not conduct a search of a stopped vehicle unless individualized suspicion developed during a stop. During the first implementation of the NSZ program, only one arrest was made at a Trinidad NSZ checkpoint; the arrest was for driving while in possession of an open container of alcohol. Forty-eight of 951 vehicles stopped during the June checkpoints were refused entry. The record does not indicate whether any arrests were made during the second implementation of the program.
See Mills v. District of Columbia,
Between the first and second implementation of the NSZ checkpoints, but after this action commenced, the District revised its Special Order governing the program. Though the six “entry-sufficient” categories remained the same, the District, understandably concerned with running afoul of the Fourth Amendment, tweaked its approach to implementing the program. Significantly, the revised Special Order established that motorists should be asked for identification only if they claimed to be residents of the NSZ in order to verify their residency. The revised Special Order also provided that information given by the motorist need only be “reasonably sufficient” to verify the motorist’s reasons for entry. The primary purpose of the NSZ program remained similar despite the revisions to other areas of the program. The revised Special Order, however, clarified that “[t]he [revised] primary purpose of an NSZ is not to make arrests or to detect evidence of ordinary criminal wrongdoing, but to increase protection from violent criminal acts, and promote the safety and security of persons within the NSZ by discouraging — and thereby deterring-persons in motor vehicles from entering the NSZ intending to commit acts of violence.”
Appellants Caneisha Mills, Linda Leaks, and Sarah Sloan were among the 48 motorists denied entry at an NSZ checkpoint during the first implementation of the *1288 NSZ checkpoints between June 7 and June 12, 2008. 1 Each appellant was denied entry in her vehicle on account of her refusal to provide certain information. Mills refused to provide personal information regarding her identity and intended activities in the NSZ, Leaks refused to provide details about her political activity and intended community organizing, and Sloan refused to provide information about a political meeting she wished to attend.
In a press conference held on July 19, 2008, MPD Police Chief Cathy Lanier stated that she would continue to utilize NSZs “until a judge orders [her] to stop.” On June 20, 2008, the appellants filed a class action complaint seeking declaratory, injunctive, and compensatory relief. The appellants asserted that the NSZ checkpoints constituted unconstitutional seizures in violation of the Fourth Amendment. The district court denied the appellants’ motion for a preliminary injunction, holding that the appellants failed to establish irreparable harm or a likelihood of success on the merits. This appeal followed.
II. ANALYSIS
Appellants argue that the district court erred in denying their motion for a preliminary injunction against the District’s imposition of the NSZ Program. To prevail, appellants “must ‘demonstrate 1) a substantial likelihood of success on the merits, 2) that [they] would suffer irreparable injury if the injunction is not granted, 3) that an injunction would not substantially injure other interested parties, and 4) that the public interest would be furthered by the injunction.’”
Katz v. Georgetown Univ.,
A. Likelihood of Success on the Merits
Appellants’ likelihood of success on the merits is dependent upon the strength of their constitutional challenge to the checkpoint program. The Fourth Amendment provides that “[t]he right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated.... ” U.S. Const, amend. IV. Without question, a seizure occurs when a vehicle is stopped at a police checkpoint.
Mich. Dep’t of State Police v. Sitz,
The constitutionality of police checkpoints is not a new controversy. Indeed, the courts of the District of Columbia have previously considered a prior roadblock program by this same police department in the same Trinidad neighborhood.
See Galberth v. United States,
In
United States v. Martinez-Fuerte,
the Court considered the constitutionality of the suspicionless routine stops of vehicles at checkpoints on major roads leading away from the border. The Court held “that stops for brief questioning routinely conducted at permanent checkpoints are consistent with the Fourth Amendment and need not be authorized by warrant.”
Martinez-Fuerte,
In
Brown v. Texas,
*1290
Most plainly controlling of the case before us is the Supreme Court decision in
City of Indianapolis v. Edmond,
The District argues that the primary purpose of the NSZ program as found by the district court — deterring violent, vehicle-facilitated crime' — does not fit within the unconstitutional category of checkpoint stops for purposes “ultimately indistinguishable from the general interest in crime control.” Instead, the District argues, this case is governed by
Illinois v. Lidster,
The District seizes on language from the
Lidster
opinion to argue that that case and not
Edmond
is controlling. The District argues that because the
Lidster
opinion noted that the “general language” in
Edmond
should be read “as referring in context to circumstances similar to the circumstances then before the Court and not referring to quite different circumstances that the Court was not then considering,”
Lidster,
The
Edmond
stop sought to detect and deter crimes involving narcotics. The NSZ stop seeks to deter violent crimes involving motor vehicles. This would seem
*1291
a distinction without a difference. In each instance the interest of the police was in general crime control, not directed to any particular suspicion or a particular crime. In neither case was there reason for the stop unrelated to the crime control purpose. The reason for stopping the individuals in each case was the possibility, without individualized suspicion, that the driver stopped might be the potential perpetrator of an as-yet undetected, perhaps uncommitted, crime. Both of these sets of facts seem to fit equally within the rubric of “general interest in crime control.”
Lidster
is unlike either one. The police in
Lidster
were investigating a crime that they knew to have occurred. They were not looking for suspects. As the
Lidster
Court stated, “information-seeking highway stops are less likely to provoke anxiety or to prove intrusive,” than the investigative checkpoint considered in
Edmond. Id.
at 425,
Refining the argument slightly, the District contends that the Supreme Court’s category of stops serving “the general interest in crime control” extends only to seizures actually looking for evidence of crime as opposed to seizures designed to deter crime. That argument is unconvincing. Nothing in
Edmond
limited “the general interest in crime control” to only those instances where a law enforcement officer was seeking evidence of a crime. In
Edmond,
the Court recognized that a general rule exists that “a seizure must be accompanied by some measure of individualized suspicion,”
Without doubt, the Edmond Court did not intend the proscription of checkpoints whose primary purpose was “general interest in crime control” to be limited to those seeking narcotics, or other evidence. Instead, the Court used the phrase in what *1292 would appear to be its natural and usual sense to include investigation and deterrence.
Indeed, when this court has been confronted with constitutional challenges to police checkpoints, it has consistently-treated the purpose of deterring ordinary criminal activity like drug crime as indistinguishable from the purpose of detecting such activity in the context of suspicionless roadblocks.
See United, States v. Bowman,
In short, appellants’ likelihood of success on the merits is strong.
B. Irreparable Injury
We further conclude that appellants have sufficiently demonstrated irreparable injury, particularly in light of their strong likelihood of success on the merits.
See CityFed Fin. Corp.,
III. CONCLUSION
In short, we conclude that appellants have established the requisites for the granting of a preliminary injunction. They have made a particularly strong showing of the substantial likelihood of success on the merits and that they would suffer irreparable injury if the injunction is not granted. The district court did not address the other two elements of the preliminary injunction test. Accordingly, we reverse the district court and remand for further proceedings.
So ordered.
Notes
. William Robinson was also stopped, and was originally a party to this action. He has since passed away, however, and is no longer a part of this case.
