United States Court of Appeals
                            FOR THE EIGHTH CIRCUIT
                                     ___________

                                     No. 99-3903
                                     ___________

Tracie Park,                              *
                                          *
               Appellee,                  *
                                          *
      v.                                  * Appeal from the United States
                                          * District Court for the Western
Forest Service of the United              * District of Missouri.
States of America,                        *
                                          *
               Appellant.                 *
                                          *
                                          *
                                     ___________

                               Submitted: January 10, 2000

                                   Filed: March 3, 2000
                                    ___________

Before WOLLMAN, Chief Judge, and MORRIS SHEPPARD ARNOLD and
      MURPHY, Circuit Judges.
                              ___________

MORRIS SHEPPARD ARNOLD, Circuit Judge.

       Tracie Park is a member of a group known as the "Rainbow Family," which
holds periodic gatherings of its members in various national forests. Ms. Park brought
a suit for injunctive relief in the district court claiming that the United States Forest
Service employed an unconstitutional checkpoint on a forest road, that the checkpoint
was targeted against her group, and that the Forest Service would continue to use
unlawful checkpoints against the Rainbow Family in the future. The district court
granted summary judgment in favor of Ms. Park, and enjoined the Forest Service from
using certain types of checkpoints that target Rainbow Family gatherings. The Forest
Service appeals and we reverse.

                                             I.
        The Forest Service argues, among other things, that Ms. Park lacks standing to
seek injunctive relief. "Standing is, of course, a threshold issue in every case before
a federal court: If a plaintiff lacks standing, he or she cannot invoke its jurisdiction."
Arkansas Right to Life State Political Action Committee vs. Butler, 

, 560
(8th Cir. 1998), cert. denied, 

(1999). Before moving to the merits of
the case, we consider first, therefore, whether Ms. Park had standing to seek injunctive
relief.

       The existence of standing is a determination of law that we review de novo. See
National Federation of the Blind v. Cross, 

, 979 (8th Cir. 1999), cert.
denied, 

(1999). "Since [the elements of standing] are not mere pleading
requirements but rather an indispensable part of the plaintiff's case, each element must
be supported in the same way as any other matter on which the plaintiff bears the
burden of proof, i.e., with the manner and degree of evidence required at the successive
stages of the litigation." Lujan v. Defenders of Wildlife, 

, 561, 

, 

(1992). Under Fed. R. Civ. P. 56(c), summary judgment is
proper only if the evidence, viewed in the light most favorable to the nonmoving party,
demonstrates that there is no genuine issue as to any material fact and that the moving
party is entitled to judgment as a matter of law.

       To establish standing, Ms. Park must demonstrate that she has suffered an injury
in fact, that her injury was caused by the conduct of the Forest Service, and that her
injury is likely to be redressed by a favorable ruling from a federal court. See 

. In the case of complaints for injunctive relief, the "injury in fact"

                                           -2-
element of standing requires a showing that the plaintiff faces a threat of ongoing or
future harm. See City of Los Angeles v. Lyons, 

, 101-05, 

,

(1983). "[I]t is the plaintiff's burden to establish standing by
demonstrating that, if unchecked by the litigation, the defendant's allegedly wrongful
behavior will likely occur or continue, and that the 'threatened injury [is] "certainly
impending." ' " Friends of the Earth, Inc. v. Laidlaw Environmental Services, Inc.,

, 709 (2000), quoting Whitmore v. Arkansas, 

, 158 (1990),
itself quoting Pennsylvania v. West Virginia, 

, 593 (1923), reaff'd, 

(1923).

       In this case, Ms. Park maintained that she was subjected to an unconstitutional
checkpoint while attending the 1996 annual gathering of the Rainbow Family, and she
filed her complaint in the district court a few weeks after the conclusion of that
gathering. The Forest Service does not deny that the checkpoint was impermissibly
operated, but argues that Ms. Park has not made an adequate showing that she will be
subjected to unconstitutional checkpoints in the future; the Forest Service therefore
contends that Ms. Park does not have standing to seek injunctive relief. We agree.

       The mere fact that the checkpoint used at the 1996 gathering was
unconstitutional cannot alone give Ms. Park standing: "Past exposure to illegal conduct
does not in itself show a present case or controversy regarding injunctive relief ... if
unaccompanied by any continuing, present adverse effects." O'Shea v. Littleton, 

, 495-96, 

, 

(1974). At the time that Ms. Park
filed her complaint for relief, the 1996 gathering had ended and the checkpoint was no
longer being used. We are therefore not presented with a case in which the unlawful
conduct is ongoing; instead, to have standing, Ms. Park must demonstrate " ' "a real,
[and] immediate threat that [she] would again" suffer similar injury in the future.' "
Harmon v. City of Kansas City, 

, 327 (8th Cir. 1999), quoting Adarand
Constructors, Inc. v. Pena, 

, 211 (1995), itself quoting 

.

                                          -3-
       In the discussion of standing in her appellate brief, Ms. Park argues that she has
standing because she intends to continue attending Rainbow Family gatherings and
because the Forest Service continues to target the Rainbow Family with
unconstitutional checkpoints. The only evidence that she adduces for this latter
assertion is an affidavit from another Rainbow Family member that claims that the
Forest Service used checkpoints at Rainbow Family gatherings on certain occasions in
1997, 1998, and 1999.

        We do not think, however, that the actual use of checkpoints in 1997, 1998, and
1999 is relevant on the issue of standing because all of these events occurred after
Ms. Park filed her original complaint. We believe that it is Ms. Park's burden to show
that, at the time she filed her suit in 1996, there was a real and immediate threat that she
would again be subjected by the Forest Service to an unconstitutional checkpoint. We
do not think that she may use evidence of what happened after the commencement of
the suit to make this showing.

        In 

(plurality opinion), the Supreme Court found that the
plaintiffs lacked standing because, among other things, they could not demonstrate that
their alleged injury was redressable. In so holding, 

(plurality opinion), a
four-justice plurality rejected the argument that an authoritative ruling by the Court
would have the ameliorative effect that the plaintiffs sought. The plurality stated that
"standing is to be determined as of the commencement of the suit," 

n.5,
and that at the commencement of the suit it could not have been foreseen that the suit
would reach the Supreme Court, see 

n.5. It seems to us that if redressability
may not be established by a development that occurs after the commencement of the
litigation, neither may an injury-in-fact. See also Perry v. Village of Arlington Heights,

, 830 (7th Cir. 1999) ("[i]t is not enough for [the plaintiff] to attempt to
satisfy the requirements of standing as the case progresses. The requirements of
standing must be satisfied from the outset").


                                            -4-
       In its argument that Ms. Park lacked standing, the Forest Service also relied on
events that took place after the commencement of this litigation. The Forest Service
pointed to the 1998 adoption of new rules that supposedly eliminate the possibility that
unconstitutional checkpoints will be used in the future, and argued that Ms. Park could
not, therefore, have standing. For the reasons that we have already stated, however,
the adoption of the 1998 rules is not relevant to the standing inquiry in this case. The
adoption of these rules would be relevant only to a contention that Ms. Park's complaint
has become moot. To carry the day on that contention, the Forest Service would have
to "[bear] the formidable burden of showing that it is absolutely clear [that] the
allegedly wrongful behavior could not reasonably be expected to recur." Friends of the

. In any event, since we decide this case on standing, we do
not reach the question of mootness.

                                              II.
        Having found that allegations of improper checkpoints after the commencement
of this suit are inapposite to the issue of standing, we turn to the record to see what
other events, predating commencement of this suit, support Ms. Park's assertion of
standing. Our analytical approach is similar to the one used by the Supreme Court in

, in which the plaintiff claimed to have been subjected to an
unconstitutional chokehold during a traffic stop. The Court found that he did not have
standing to seek injunctive relief because the possibility that he would be stopped again
and, moreover, treated in a similar manner was simply too speculative. 

The Court's measurement of the likelihood of future injury seemed to require two
criteria: First, the probability that the plaintiff would be stopped again and, second, the
probability that the officers would use a chokehold again.

      It is undisputed that Ms. Park planned to attend, at the very least, the next
annual gathering of the Rainbow People. We find the probability very high, therefore,
that Ms. Park would, within one year of commencing this suit, attend a gathering of the
Rainbow People, in the course of which she would visit a national forest and potentially

                                           -5-
come into contact with the Forest Service. We note that an upcoming annual event is
sufficiently temporally proximate to be considered an "immediate" threat and therefore
to support standing for injunctive relief, Adarand 

.

       The key inquiry in the issue of standing in our case, however, focuses on the
second criterion in the probability calculus, that is, the probability that the Forest
Service will use an unconstitutional checkpoint at the next annual gathering. We think
that among the relevant considerations in this regard are statements of future intent and
patterns of past practice. See 

(identifying official police policy
as an indicator of future police conduct), and United States v. Articles of Drug, 

, 1248 (8th Cir. 1987) (citing a "pattern of noncompliance" to justify
injunctive relief).

       There is no indication in the record in our case that the Forest Service maintained
an official policy of using unlawful checkpoints against the Rainbow Family. Nor are
we persuaded that the record could support a finding that the Forest Service harbored
an unofficial animus against the Rainbow Family. We note first that there is no
evidence that the Forest Service treated similarly situated groups differently from the
Rainbow Family, partly because there were no similarly situated groups. The Forest
Service presented an affidavit that the Rainbow Family's meetings were unique in their
size: Whereas the largest gatherings in a national forest ordinarily number
approximately 250 people, the annual meeting of the Rainbow Family draws over
15,000 people, which presents unique administrative and logistical concerns. The
Rainbow Family does not contest this.

       The Forest Service also presented affidavits stating that checkpoints were
routinely used at much smaller gatherings (i.e., 100-200 people), such as fraternity
parties and large hunting groups. The Rainbow Family presented no evidence to
contest this, either. Finally, although Ms. Park suggested in her deposition that the
Forest Service was "overly enthusiastic" in its enforcement of the law at Rainbow

                                           -6-
Family gatherings, she was not aware of any occasion on which a Forest Service officer
turned a blind eye to similar violations committed by non-Rainbow Family members,
at their own or any other gatherings.

        Ms. Park also cited an unpublished opinion by a Texas district court from an
earlier case between the Rainbow Family and the Forest Service in which the district
court found that the Forest Service "acted with hostility to the Rainbow Family."
United States v. Rainbow Family, No. L-88-68-CA (E.D. Tex. Apr. 14, 1989), at 27.
We believe, however, that this opinion, which concerned a dispute that occurred eleven
years ago over an unrelated permit policy, is insufficient evidence of a service-wide
animus in 1996 that would make the use of an unconstitutional checkpoint in 1997
likely.

       Nor are we persuaded by Ms. Park's claim, advanced in oral argument but not
in her brief, that the Forest Service's inability to state the purpose for the 1996
checkpoint consistently indicates that the Forest Service harbors some hidden animus
against the Rainbow People. Although it may be true that various Forest Service
officers gave different explanations for the checkpoint (for example, some officers said
that the checkpoint was for informational and resource conservation purposes, while
others said that it was a drunk-driving checkpoint), we find it far more likely that this
was the product of individual confusion rather than institutional animus.

                                              III.
       Finally, we note that there is very little evidence of a "pattern of noncompliance,"
Articles of 

, with the Constitution by the Forest Service. In her
deposition, Ms. Park expressed some uncertainty as to when the Forest Service
employed checkpoints in the past, but it is apparent that the Forest Service used
checkpoints in some years but not others. Ms. Park provided almost no details about
the operation of these prior checkpoints, and we are unable to conclude from her very
limited account that those checkpoints were unconstitutional.

                                           -7-
       One Rainbow Family member stated in an affidavit that he saw checkpoints at
Rainbow Family gatherings on three occasions prior to the 1996 national gathering.
We note, however, that the affidavit claims only that the Forest Service operated one
of these checkpoints, in 1993, and that other or unnamed entities operated the
checkpoints on the other two occasions. As far as the 1993 checkpoint is concerned,
even if that checkpoint was unconstitutionally operated, we are doubtful that that would
be enough to establish a "pattern of noncompliance," 

moreover, that there is insufficient evidence to establish that the
1993 checkpoint was unconstitutional. According to the affidavit, the checkpoint was
operated on a forest road, in close proximity to the Rainbow Family gathering, and
consisted of an identification and registration check. These assertions, however, taken
as true, do not describe an unconstitutional checkpoint.

       We do not believe that a checkpoint where officers ask for identification is illegal
per se, nor do we believe that a checkpoint on a forest road is illegal per se. See
Michigan Department of State Police v. Sitz, 

, 451-53 (1990). On this
latter point we note in passing that although it may be true that the forest road in
question ordinarily has little traffic, it is heavily traveled on the day of the gathering,
and is therefore distinguishable from the " ' "seldom-traveled roads" ' " described in

, quoting United States v. Martinez-Fuerte, 

, 558
(1976), itself quoting United States v. Ortiz, 

, 894-95 (1975). Finally, we
do not believe that a checkpoint that targets a uniquely disruptive event, such as the
Rainbow Family's annual gathering, is illegal per se. Although it is possible that, when
provided with evidence of the numbers of cars stopped and the number of arrests made,
we would conclude that the 1993 checkpoint failed the test described in 

, 455, the Rainbow Family has failed to produce any such evidence.




                                           -8-
                                           IV.
        To summarize, we find that Ms. Park has failed to show that, at the
commencement of the litigation, there was a significant probability that the Forest
Service would use an unconstitutional checkpoint in the future. Therefore, we do not
believe that the " 'threatened injury [was] "certainly impending," ' " Friends of the

, quoting 

, itself quoting
Pennsylvania v. West 

, and we conclude that Ms. Park did not
have standing to seek injunctive relief when she filed her complaint in 1996. In
reaching this conclusion we are mindful that the Forest Service admitted to using an
improper checkpoint in 1996, and that questionable checkpoints may have been used
since that time. It is possible that Ms. Park would have standing to seek injunctive
relief in an action commenced today, if these more recent checkpoints establish a
pattern of wrongdoing by the Forest Service. It is our hope, however, that Ms. Park
will not have to resort to legal action again to be free from future violations of her
constitutional rights, and that the administrators of the Forest Service will ensure that
the inappropriate conduct of 1996 is not repeated.

      For the foregoing reasons the district court's award of summary judgment in
favor of Ms. Park is reversed, and the district court's injunction against the Forest
Service is vacated.

      A true copy.

             Attest:

                 CLERK, U.S. COURT OF APPEALS, EIGHTH CIRCUIT.




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