Appellant appeals from an order of the trial court which granted appellee’s motion for summary judgment in her action for false arrest and imprisonment. We affirm.
Uncontradicted evidence before the trial court established that on the afternoon of March 8, 1980 appellant, a customer in ap-pellee’s department store, The Hecht Company, purchased a skirt. The cashier apparently failed to remove a magnetized sensor-matic device designed to apprehend shoplifters and, consequently, appellant activated a buzzer near a store exit as she attempted to leave.
A security guard assigned to monitor the sensormatic detector then approached appellant and asked whether she had made a purchase in the store. She responded that she had bought a skirt and the guard asked to see it. Appellant showed him her shopping bag, which contained bags with purchases from various other stores, whereupon the guard removed a Hecht Company bag and discovered that, while a sensormatic device was still attached to the skirt, appellant had a receipt for her purchase.
At this point the guard asked appellant to follow him and touched her elbow with his hand. When appellant responded that she could walk by herself without his assistance, he dropped his hand and again asked that she follow him. As they proceeded toward a small room near the exit, the guard explained that there was no problem, that incidents of this nature occurred frequently. Appellant overheard other shoppers who observed the incident comment that a shoplifter had been apprehended.
Inside the small room the guard used a machine to remove the magnetic tag from the skirt and wrote a report about the incident in appellant’s presence, explaining that he was required to record such incidents. He then returned the skirt to appellant and she departed.
Appellant filed a complaint against appel-lee in the trial court alleging false arrest and false imprisonment. Following the deposition of appellant, appellee moved for summary judgment. The trial court granted this motion on the ground that the undisputed facts revealed as a matter of law that no false arrest or imprisonment had occurred. 1
*1044
“The gist of any complaint for false arrest or false imprisonment
2
is an unlawful detention.... ”
Clarke
v.
District of Columbia,
Once a prima facie case of false arrest or false imprisonment has been established, however, “a showing of probable cause constitutes a valid defense [to such] an action ... [and] probable cause exists if the facts and circumstances known to the arresting officer warrant a prudent man in believing that [an] offense has been committed.”
Shaw v. May Department Stores Co.,
In reviewing appellant’s claims we are mindful that summary judgment is proper where the pleadings and supporting documents reveal that “there is no genuine issue of a material fact concerning a dispos-itive issue and where the moving party is entitled to judgment as a matter of law.”
Yates v. District Credit Clothing, Inc.,
In the instant case the trial court correctly ruled that appellee was entitled to judgment as a matter of law based on the undisputed facts as established by the pleadings and supporting materials. Assuming for purposes of this appeal that the words spoken and actions taken by the guard when the sensormatic alarm sounded created a reasonable apprehension of present confinement the guard nevertheless had probable cause to detain and question appellant. The undisputed facts reveal that the alarm sounded as appellant attempted to exit the store, an event sufficient to support an inference that she was attempting to remove merchandise from the store illegally — particularly in light of the sophistication and selectivity of the sensormatic equipment.
See Lucas v. United States,
Our conclusion that the security guard had probable cause to detain appellant does not end our inquiry, however, since a detention which is unreasonable in length or manner could constitute a false imprisonment despite the legality of the initial confinement.
Cf. Shaw v. May Department Stores Co., supra,
Affirmed.
Notes
. Although appellant captioned her complaint “False Arrest ánd False Imprisonment” the trial court also analyzed the undisputed facts to determine whether appellant could recover based on a theory of negligent infliction of emotional distress. The court properly con-eluded that, since no physical injury was established appellant could not recover for any humiliation, shock, embarrassment, and mental anguish she may have suffered as a result of the cashier’s negligent failure to remove the sensormatic device from the skirt.
See Waldon
*1044
v.
Covington,
. As a practical matter — at least for our purposes here — there appears to be no real difference between false arrest and false imprisonment.
Shaw v. May Department Stores Co.,
