Plaintiff, Tony Jeffers, appeals from a decision finding that defendant police officer, Debbie Heavrin, is protected by the doctrine of qualified immunity from damages flowing from her arrest of Jeffers without probable cause.1
Although we affirm the decision of the district court on the issue of qualified immunity, we find it necessary to remand again on the issue of the alleged pendent state claims.
I.
On the issue of probable cause, we concluded our earlier opinion by stating:
Under these circumstances, we are forced to conclude that the requisite probable cause for an arrest was lacking. In reaching this conclusion, we do not foreclose an argument upon remand that Officer Heav-rin, although in the wrong, may nonetheless be entitled to qualified immunity. We pass no judgment on the merits of such an argument, if made.
Jeffers v. Heavrin, 932 F.2d 1160, 1164 (6th Cir.1991), cert. denied, — U.S. -, 112 S.Ct. 937, 117 L.Ed.2d 108 (1992).
The district judge concluded that Heavrin was entitled to qualified immunity, and now we must pass the judgment we earlier reserved.
Our starting point is that probable cause determinations, even if wrong, are not actionable as long as such determinations pass the test of reasonableness. Reasonableness is a question of law to be decided by the trial judge. Hunter v. Bryant, — U.S. -, 112 S.Ct. 534, 116 L.Ed.2d 589 (1991). We already have determined that Officer Heavrin’s probable cause determination was wrong, so we are left only to determine its reasonableness. Although we make this determination de novo, we evaluate any of the trial judge’s underlying factual determinations under a clearly erroneous standard.
On the date Jeffers was arrested, Officer Heavrin was stationed at one of the infield gates at Churchill Downs on the day of the running of the 1983 Kentucky Derby. A crowd of 130,000 persons was anticipated. Of that number, 75,000 were destined to sit in the infield with no fixed or reserved seating. Since previous experience had indicated the infield crowd sometimes became unruly, entering patrons were not allowed to bring in grills, bottles, or anything that might be used as a weapon or missile. Parcels were inspected.
The problem was severe enough that in 1981 and thereafter the Jefferson County Police Department assumed responsibility for the gate inspections of the 75,000 persons who would be entering the infield. The problem of illegal drugs entering was significant enough that four roving narcotics officers were deployed as part of the infield gate crew.
When Jeffers, one of the thousands passing through the gate where Heavrin was working, turned up with a suspicious pill bottle, Heavrin sought the help of another officer to have the pills identified. When that officer reported back that the contents were suspected to be valium in an unlabeled bottle, Heavrin arrested Jeffers. In hindsight, the information on which Heavrin acted was negligently secured, and her decision to arrest Jeffers rather than deny entry was questionable. However, the doctrine of qualified immunity encompasses such judgmental errors. Malley v. Briggs, 475 U.S. 335, 106 S.Ct. 1092, 89 L.Ed.2d 271 (1986). As did the district judge, we find the decision to arrest was reasonable under the circumstances. The huge crowds, the potential for unruly crowds causing personal injuries, the “contribution” that illegal drugs and alcohol *382make to crowds getting out of hand were the backdrop against which Officer Heavrin had to make an immediate field decision. Unquestionably, she could have done more investigating, but we know of no case decided at that time which would have reasonably put her on notice that she must do so under these circumstances.
II.
In the district court’s original opinion, the trial judge concluded:
Thus, although Jeffers’ complaint sufficiently makes a separate claim for damages as the result of negligent prosecution, damages were not established during trial with the specificity required in order for this Court to render an award. For that reason and that reason only, an award of damages will not be made to the plaintiff for his claim of negligent prosecution.
Jeffers v. Heavrin, 701 F.Supp. 1316, 1326 (W.D.Ky.1989). Our appellate response to this conclusion was as follows:
We also conclude the court erred in determining that damages were not proved with sufficient specificity to be awarded. Although damages of the type incurred here do not generate paid receipts or documented out-of-pocket expenses or losses, they are not speculative and appear, to us at least, relatively easy to compute.
Due to our ruling on the probable cause issue, we pass no judgment on the viability of a “negligent prosecution” theory. It may well be that this theory will now be subsumed by the probable cause determination, since it would appear the damages would be the same under either theory.
932 F.2d at 1164 (footnote omitted).
On remand, the district court made no mention of the “negligent prosecution” claim. Although we suggested that if damages were awarded for the arrest without probable cause this might subsume the alternate theory, such did not come to pass. Since we have the issue before us again, we note that “negligent prosecution” is a term coined in the district court’s original opinion without specific reference to state law.2 We also note that the original basis for federal jurisdiction has now evaporated and the status of pendent state claims is not clear. United Mine Workers v. Gibbs, 383 U.S. 715, 86 S.Ct. 1130, 16 L.Ed.2d 218 (1966). Normally, state claims would be dismissed without prejudice in a pretrial setting, but, here, there already has been a trial.
It appears to us the best course of action is to remand and let the district judge determine if such a cause of action exists, if it has been properly pleaded, and its status now that the federal claim has been decided adversely to the plaintiff. In making its determination, the district court need be mindful of its earlier ruling on this issue. Our reading of that ruling is that this cause of action was pleaded, but damages were not established. We found no prior ruling on liability made by the trial judge and we, of course, reversed the court’s damages conclusion.
Reluctant as we are to send back this ten-year old case, we have no alternative but to remand.
AFFIRMED IN PART and REMANDED for further proceedings.
. This appeal is before us following an earlier remand. Jeffers v. Heavrin, 932 F.2d 1160 (6th Cir.1991). The original opinion of the district court also was published. Jeffers v. Heavrin, 701 F.Supp. 1316 (W.D.Ky.1989). We do not recite the facts again and merely pick up the scenario from the point of .our prior remand.
. In count III, paragraph 4, the following is alleged:
The Defendant, Debbie Heavrin, on the 7th day of May, 1983, was negligent or reckless in the performance of her duties and falsely arrested the Plaintiff in violation of K.R.S. 431.-005 by making a warrantless arrest on less than reasonable grounds and when no misdemeanor was committed in her presence and thereafter caused him to be imprisoned and prosecuted negligently, wrongfully and unlawfully.
It is assumed this is the source of the court's reference to "negligent prosecution.” This paragraph also refers to claims for false arrest and false imprisonment, and these claims were not addressed in the district court either. We also note that if, as plaintiff contends, there are unresolved pendent state claims, then this appeal is technically not properly before us. Although the denial of a qualified immunity motion is a proper subject of an interlocutory appeal, the granting of such a motion does not carry with it the right to appeal when there are still other unresolved claims. We proceed nonetheless for two reasons: (1) the district court may have erroneously thought its qualified immunity ruling disposed of all claims, and (2) we endeavor to serve judicial economy by resolving the qualified immunity issue.