This is an appeal from a judgment of sentence for unlawful restraint 1 and robbery. 2 The principal issue, as we see it, is whether appellant was arrested without probable cause. We have concluded that there was probable cause, and affirm. 3
*119 Appellant was arrested for committing an armed robbery at the Weis market in East Hempfield Township, Lancaster County. Officer Robert A. Herman, Jr., the East Hempfield Township police officer who arrested appellant, relied on two sources of information: a radio broadcast from the Lancaster County Radio Dispatcher, and Kearney Sherr, the owner of a service station approximately one block from the Weis market. At 7:37 A.M. on October 28, 1978, while at the township police station, Officer Herman heard over the police radio a report that there had been an armed robbery at the Weis market. The officer responded to the call by driving to the shopping plaza where the Weis market was located. En route he received information on the poliсe radio describing the robber as a black or Puerto Rican male with a handgun 4 who was last seen running from the market to the northeast corner of the parking lot in the shopping plaza. The officer drove to this corner and conducted an on-foot seаrch of the area. Finding nothing, he returned to his police car, where he heard over the radio that an individual from a service station near the Weis market was traveling east on Columbia Avenue in pursuit of a small white foreign automobile with out-of-state licensе tags. Proceeding east on Columbia Avenue, the officer encountered traffic caused by an unrelated automobile accident. *120 At the scene of this accident he was approached by Kearney Sherr, who was the service station owner whо had been in pursuit of the white automobile. Sherr told Officer Herman that about 7:45 a. m. he heard a report of the robbery on his police radio scanner; that he went to watch the traffic coming from the parking lot at the Weis market, and saw a white automobile, going at a “fairly good rate of speed,” leave a trailer court one half block from his station, between the station and the Weis market; and that he had followed the white automobile to a parking lot in the Conestoga West Apartments in neighboring Manor Tоwnship. The officer asked Sherr to take him to the parking lot. When they arrived, Sherr identified an automobile there as the one he had followed. Appellant was at the driver’s side, and the officer arrested him; the time of the arrest was approximately 7:51 a. m.
The law is clear that a warrantless arrest is not lawful unless there is probable cause therefor .. . Whether there is probable cause to arrest without a warrant depends on whether, at the moment a suspect is taken into custody, the facts and circumstanсes within the officer’s knowledge, and of which he has reasonably trustworthy information, are sufficient to warrant a man of reasonable caution to believe that an offense has been committed and that the person to be arrested has committed the offense. ..
Thus, in order to arrest without a warrant, the officer must have a reasonable belief in the probability of criminal activity by the person to be arrested. However, that belief need not be grounded in the officer’s direct, personal knowledge of the relevant facts and circumstances. It may, instead, rest solely on information supplied by another person where there is a “substantial basis” for crediting that information ...
Commonwealth v. Stokes,480 Pa. 38 , 43-44,389 A.2d 74 , 76 (1978) (citations omitted).
See also Commonwealth v. Patterson,
*121 Here, there is no question that Officer Herman had a reasonable belief that a crime had bеen committed. The question, rather, is whether the officer had sufficient information to support a reasonable belief that appellant had committed the crime.
In arguing that the information was not sufficient, appellant particularly relies on
Commonwealth v. Daniels,
In
Daniels
the officer had two sources of information; one source “only observed two men acting ‘suspiciously’, and had no idea of the identities of the people he observed,”
*122
The feature that distinguishes these cases from the present case is that in none of them was the arresting officer accompanied by an informant who had seen the suspect flee from the scene of the crime. In
Daniels
the Supreme Court specifically noted this weakness, commenting that “neither source can be said to be an eyewitness.”
The lower court relied on
Commonwealth v. Wilder,
We recognize that Jones may be distinguished from the present case; appellant did not present the suspicious appearance presented by the suspect in Jones. We find it difficult, however, to distinguish Wilder; if anything, the facts here seem stronger than they were in Wilder, for in Wilder the police did not have an informant who never lost sight of the fleeing car.
In
Commonwealth v. Pegram,
Flight, coupled with other factors, such as knowledge of the defendant’s prior criminal record or the sight of contraband or screams for help or reliable information that defendant had attempted to commit or had committed a crime, may be strong indication that there is something that those fleeing wish tо hide from the police and may constitute probable cause for arrest ....
It is probably impossible to reconcile the cases as to when there are enough “other factors,” in addition to flight, to constitute probably cause. For example, Commonwealth v. Ryan, supra, and Commonwealth v. Everett, supra, seem to require a stronger showing of probable cause than does Commonwealth v. Wilder, supra, although in this regard we note that in Ryan and Everett the decision on probable cause was not central to disposition. In Ryan the in-court identification was found to be not tainted by the arrest, and in Everett, after the arrest the officers received additional *124 untainted information that corroborated thеir belief that the defendant’s automobile was the escape vehicle, and provided probable cause.
Such differences among the cases, however, should not surprise us. The facts and circumstances of every case differ; it is impossible to classify them and thereby derive a formula that will enable us to say that in one case probable cause has been shown, in another, not. In one case a particular fact may be of great significance to the arresting officer, in another it may not help him at all in surmising what is happening. Besides, even if the facts of any two cases were just the same, different judges might still reasonably disagree about how the officer as “a man of reasonable caution” should have reacted.
Here, Officer Herman knew that Kеarney Sherr had seen an automobile, not from the neighborhood, leave the immediate area of the robbery right after the robbery was committed, at a rate of speed fast enough to attract attention. (We acknowledge that Sherr did not see аppellant commit the robbery. However, in Commonwealth v. Jones, supra, neither did the neighbor who chased the boys see them rob the grocer.) Also, the officer knew that Sherr had been sufficiently impressed by what he saw to pursue the automobile. (Of course, simply because Sherr was impressеd did not mean he was right. Nevertheless, we think an officer is entitled to give some weight to the fact that a citizen is so convinced he gives chase, especially when the citizen operates a service station across from the scene of the robbery and may therefore be assumed to be familiar with comings and goings in the area.) Also, Sherr took the officer to the place to which he had pursued the automobile, and there beside the automobile was a man who fit the description of the robber broadcast over the police radio. (Admittedly, it was only a very general description. Still, it fit.) Finally, only a few minutes had elapsed between the time of the robbery and the time Sherr took the officer to appellant’s automobile. While it may be said that the offi *125 cеr did not have many facts, we believe that in the circumstances he had enough.
Affirmed.
Notes
. The Crimes Code, Act of Dec. 6, 1972, P.L. 1482, No. 334, Section 1, 18 PA.C.S.A. § 2902.
. 18 Pa.C.S.A. § 3701.
. Appellant also argues that evidence was improperly taken from his automobile; that testimony about a photographic line-up was admitted to his prejudice; and that the trial judge should have declared a mistrial because a juror reported late. These arguments are properly disposed of by the opinion of the lower court (ECKMAN, J.). Finally, appellant argues that the verdiсts were contrary to the weight of the evidence. It appears to us that this argument has been waived. Although raised in appellant’s post-trial motion, so far as we can tell it was not pressed on argument before the lower court.
See
slip op. at 2, where thе court enumerates appellant’s arguments. To be preserved for appellate review, an issue must not only be raised by post-trial motion, but also, not abandoned when the case is argued to
*119
the lower court.
See generally Carnicelli v. Bartram,
. Appellant is described in the Commonwealth’s brief as being a Cuban male.
