Anna Mustafa sued the defendant police officers for false arrest and violation of her civil rights following an incident at Chicago’s O’Hare Airport. The district court granted summary judgment in favor of the defendants because it found that there was probable cause to arrest Mustafa, and even in the absence of probable cause, the defendants were protected by qualified immunity. Because we agree with the district court that the defendant officers acted upon probable cause and, in any event, acted within the scope of their immunity, we reject Mustafa’s argument that summary judgment was improperly granted and affirm the ruling of the district court.
I. BACKGROUND
Anna Mustafa is a 56-year-old American citizen of Palestinian descent and Muslim faith. On December 28, 2001, just three months after the attacks of September 11, Mustafa received word that her father had died in Israel. That afternoon, Mustafa arrived at the Swissair ticket counter at O’Hare, intending to fly to Tel Aviv by way of Zurich, Switzerland to attend her father’s funeral. Mustafa was accompanied to the counter by nineteen members of her immediate family. Musta-fa ordered a “Muslim” meal for the flight. Moments later, the Swissair clerk took Mustafa to a bomb-detection machine to have her two pieces of luggage inspected for weapons. Mustafa suspected that this was an instance of discriminatory religious or ethnic profiling. Following the inspection, Mustafa complained about her treatment to a Swissair manager, Muhammad Qadeer, who offered to escort her to the gate because the screening was complete. During this exchange, Mustafa was screaming and the area was crowded. Mustafa realized that security personnel had failed to inspect her purse. She did not realize that carry-on bags would be screened at another checkpoint, and she was concerned that if Swissair later realized it had not checked the purse, she would be delayed and miss her flight. Mustafa tried to point out that her purse had not been inspected, saying, “You already checked my luggage. Maybe I have a bomb in my purse. Nobody has checked that.” In response to the word “bomb,” an employee working at a nearby United Airlines counter began to yell that she had heard the “B-word” and that security should be called. Another manager, Mauricio Peñaranda, called the police to report an “unruly” passenger saying the word “bomb.”
Within two to three minutes, defendant Officer Susan Schober arrived and observed what she later described as a “commotion.” Qadeer informed her that Mus-tafa had made a statement like “Maybe I have a bomb in my purse.” Officer Scho-ber, Qadeer, Mustafa, and one of Mustafa’s sons, Murad Mustafa, spent 20 to 30 minutes in conversation that focused on calming Mustafa down so that she could get on the flight to Zurich. Following this conversation, defendants Sergeant Gawlik and *547 Officer Burke arrived and asked Officer Schober if she had checked Mustafa’s purse. Since the answer was no, the two new officers checked the purse, shouting abusively at Mustafa. Sergeant Gawlik placed Mustafa under arrest. Mustafa, her son Murad, and Sergeant Gawlik engaged in a screaming argument during which Sergeant Gawlik insulted Mustafa’s family and made a racist reference to the September 11 terrorist attacks three months earlier. Mustafa spent two days in jail before being released on $50,000 bond; she missed her father’s funeral. Mustafa was indicted on a charge of Felony Disorderly Conduct — Bomb Threat pursuant to 720 III. Comp. Stat. 5/26 — 1(a)(3), but acquitted following a bench trial. 1
After Mustafa was acquitted, she filed the instant suit against the City of Chicago and four police officers, which originally contained seven counts. A number of claims, including all those stated against the city, were dismissed. The defendant police officers moved for summary judgment on the surviving counts, false arrest and violation of Mustafa’s right to equal protection under the law pursuant to 18 U.S.C. § 1983. The district court granted summary judgment for the defendants on both counts. This appeal followed.
II. ANALYSIS
A. There was probable cause to arrest Mustafa.
We review a district court’s grant of summary judgment de novo, viewing the facts in the light most favorable to the non-moving party.
McCoy v. Gilbert,
Police officers have probable cause to arrest an individual when “the facts and circumstances within their knowledge and of which they have reasonably trustworthy information are sufficient to warrant a prudent person in believing that the suspect had committed” an offense.
Kelley v. Myler,
Here, there were at least two separate facts that could have led a reasonable person to believe that a crime had been committed. First, the earliest arriving officer, Officer Schober, observed “commotion” and “agitation” in progress, with Mustafa at its center, at a crowded ticket counter at an international airport.
See
720 Ill. Comp. Stat. 5/26 — 1(a)(1) (“A person commits disorderly conduct when he knowingly does any act in such an unreasonable manner as to alarm or disturb another and to provoke a breach of
*548
the peace”). Second, Qadeer, the Swissair manager, told the officers that the plaintiff had said, “Maybe I have a bomb.” Once a reasonably credible witness informs an officer that a suspect has committed a crime, the police have probable cause to arrest the suspect.
Id.; Kelley,
Mustafa makes much of the fact that Qadeer never actually believed that Mustafa had a bomb in her purse. This argument misapprehends the focus of our review of the circumstances surrounding her arrest. The existence of probable cause does not depend on the actual truth of the complaint.
Woods,
Likewise, the fact that Mustafa’s statement was phrased conditionally, prefaced by the word “maybe,” is irrelevant under the plain language of the. statute, which forbids any “false alarm to the effect that a bomb ... is concealed.” Id. Particularly in light of the time and place of the event, which occurred in an international airport three months after the September 11 attacks, and the understandable sensitivity of air travelers and airport security personnel at that time, it was reasonable for the officers to conclude that Mustafa had committed disorderly conduct by stating that she might have a bomb in her purse.
' Finally, Mustafa erroneously suggests that the defendant officers were derelict in their duty to investigate the circumstances surrounding the incident before arresting her. But police officers have no duty to investigate extenuating circumstances or search for exculpatory evidence once probable cause has been established via the accusation of a credible witness.
Anderer v. Jones,
B. The defendants were protected by qualified immunity.
Even if we were to find that there was insufficient probable cause to justify Mustafa’s arrest, the doctrine of qualified immunity would nonetheless ensure a ruling in favor of the defendants. Qualified immunity protects officers performing discretionary functions from civil liability so long as their conduct does not violate
dearly established
statutory or constitutional rights that a reasonable person would know about.
See Saucier v. Katz,
As discussed above, Mustafa argues that it was unreasonable to believe
*549
she had committed a crime because her statement about a bomb was phrased as a possibility rather than a fact
{“maybe
I have a bomb in my purse”), because any reasonable person would have realized that she was not serious, and because she did not actually frighten or convince anyone that she had a real bomb. However, even if we accepted this argument, this would not disturb the defendants’ qualified immunity defense. As discussed above, the Illinois statute at issue applies to implausible and unconvincing bomb threats.
See People v. Barron,
Furthermore, even if no reasonable person could have believed that Mustafa had made a genuine bomb threat, the officers might reasonably have believed that Mustafa had committed the closely related offense of nonspecific disorderly conduct under 720 Ill. Comp. Stat. 5/26-1(a)(1), which covers any unreasonable activity which alarms or disturbs another and provokes a breach of the peace. It is undisputed that Mustafa disturbed employees at the airport and that a noisy confrontation ensued. Officers may arrest individuals suspected of any crime; the fact that Mustafa was prosecuted under only the bomb threat section of the disorderly conduct statute does not mean that she could only properly be arrested under that section. Thus, the officers are protected by qualified immunity, and the district court’s ruling in their favor is affirmed.
C. The defendant-appellees are not entitled to attorneys’ fees.
The defendants have moved for attorneys’ fees pursuant to Federal Rule of Appellate Procedure 38, 42 U.S.C. § 1988(b), and 28 U.S.C. § 1927. Those provisions permit the discretionary award of attorneys’ fees to the victorious party where a losing party has engaged in frivolous appeals or vexatiously and unreasonably prolonged litigation.
See, e.g., Meredith v. Navistar Int’l Transp. Corp.,
III. CONCLUSION
For the foregoing reasons, we Affiím the judgment of the district court. The defendants’ motion for attorneys’ fees is Denied.
Notes
. The statute under which Mustafa was charged applies to any person who "Transmits or causes to be transmitted in any manner to another a false alarm to the effect that a bomb ... is concealed in such place that its explosion or release would endanger human life, knowing at the time of such transmission that there is no reasonable ground for believing that such bomb ... is concealed in such place.” 720 Ill. Comp. Stat. 5/26-1(a)(3).
