NEWMAN, Chief Judge:

After a bench trial, appellant was convicted of multiple counts of burglary and larceny. On appeal he contends the motions judge committed reversible error in denying his motion to suppress certain tangible evidence. We agree and reverse.

Insofar as relevant to the suppression issue, the evidence was as follows. On the afternoon of February 12, 1976, in the 1200 block of Q Street, N.W., Officer Jones of the Metropolitan Police Department observed appellant in a 1970 Cadillac stopped abreast of a parked car. After directing appellant to move his vehicle around the corner onto Vermont Avenue, the officer conducted a WALES check, from which he ascertained that appellant's driver's license had been suspended. Appellant was placed under arrest for driving on a suspended permit.

Officer Jones further testified that during the time he was conducting the WALES check (while seated in his police vehicle to the rear of appellant's vehicle) he noticed that appellant, who was then seated in his Cadillac, "bent over to the passenger's side and kept looking up in his mirror to see where I was positioned at. During the time it seemed as though, you know, he was pushing something under the seat and looked back towards me to see where I was or what I was doing." Officer Jones also stated that at the time he arrested appellant (according to his testimony, 3:50 p. m.), he could see a brown bag partially protruding from under the passenger's seat, which, because of appellant's "furtive motions", he suspected contained contraband. However, he made no attempt to examine the bag nor to ascertain its contents at the arrest scene. During his testimony at the suppression hearing, appellant placed the time of his arrest between 1:30 p. m. and 1:45 p. m. on the date in question. He denied making any "furtive motions" as described by Officer Jones, and further stated that because of the design of the interior of his car and the height of the seats therein, it would have been physically impossible for Officer Jones to have seen any "furtive movements" if any had occurred.

Appellant was transported in a police transport vehicle to the 3rd District police substation at 6th and New York Avenue, N.W., a distance of approximately 14 blocks. The Cadillac was driven to the same police station by Officer Jones. Upon arrival at the police station, Officer Jones removed the partially protruding bag from under the seat and examined its contents. Finding therein credit cards and other documents in the names of two females, Officer Jones searched the glove compartment of the car and found other items.

No evidence was presented by either side on the issue of whether appellant was asked to consent to the removal of his vehicle to the police station. Appellant's attempts, through counsel's cross-examination of Officer Jones, to obtain official police records to resolve the conflicting testimony as to the time of appellant's arrest as well as the reason for the removal of appellant's car from Vermont Avenue to the police precinct were frustrated by the motions judge's termination of this relevant line of inquiry.

Finding that the search was "reasonable" under the circumstances, the trial court denied the motion to suppress the contents of the brown bag and the glove compartment.

On this appeal, the government seeks to sustain the denial of suppression on four grounds: (1) a police officer, having probable cause to search an automobile on the scene where it is stopped, may constitutionally do so later at the station house without first obtaining a warrant, Chambers v. Maroney, 399 U.S. 42, 90 S.Ct. 1975, 26 L.Ed.2d 419 (1970); (2) the bag was examined during a proper inventory of the automobile in police custody, South Dakota v. Opperman, 428 U.S. 364, 96 S.Ct. 3092, 49 L.Ed.2d 1000 (1976); (3) the search was incident to a lawful arrest, McGee v. United States, D.C. App., 270 A.2d 348 (1970); and (4) the search was "reasonable." We deal with each of these grounds in turn.

I. Probable Cause

Where probable cause exists to search an automobile when it is stopped on a highway, police may remove the vehicle to a more secure location, such as a police station, before conducting such a search and they need not first obtain a search warrant. Chambers v. Maroney, supra. As Chambers makes clear, the sine qua non of this exception to the warrant requirement of the Fourth Amendment is probable cause to search, coupled with vehicular mobility. Thus, we must determine whether probable cause existed for the search of the automobile at the scene. We conclude that no such probable cause to search existed at the scene. Taking the evidence with reasonable inferences therefrom, the facts known to the officer at the time of the arrest showed no more that one who was found operating a motor vehicle while his license was suspended made "furtive movements" and that a brown paper bag partially protruded from beneath the seat. This is insufficient to establish probable cause to search. Tyler v. United States, D.C.App., 302 A.2d 748 (1972); Watts v. United States, D.C.App., 297 A.2d 790 (1972). Thus the Chambers exception to the warrant requirement is not applicable.

II. Inventory Search

The motions judge viewed the impoundment of appellant's vehicle upon his arrest as proper based on his view that such was a necessary precaution to safeguard appellant's vehicle.

Relying on South Dakota v. Opperman, supra, the government seeks to sustain the seizure and examination of the brown bag and its contents as part of a routine inventory incident to the impoundment of appellant's car. However, as Opperman makes clear, a condition precedent to a constitutionally permissible inventory search is lawful possession by the authorities of the vehicle. We too have repeatedly so held. See, e. g., Mayfield v. United States, D.C.App., 276 A.2d 123 (1971); United States v. Pannell, D.C.App., 256 A.2d 925 (1969); Williams v. United States, D.C. App., 170 A.2d 233 (1961). Therefore, we must determine whether the police properly had appellant's vehicle in their custody.

Metropolitan Police Department General Order, Series 602, No. 1, (effective May 26, 1972), entitled "Automobile Searches and Inventories", sets forth the police procedure to be followed in cases such as here presented. Part I-B of this Order outlines four situations in which property may be impounded and inventory searches conducted. Only one of these is arguably applicable on the facts of this case — inventory of prisoner property, i. e., property which is not itself evidence of a crime or subject to forfeiture and which is in the possession of an arrestee at the time of arrest. As our decisions in Williams, supra, and Pannell, supra, make clear, police are authorized to impound a motor vehicle as prisoner property only where the prisoner consents thereto or is incapable of making other arrangements for its disposition. Here, there is no evidence that appellant consented to the impoundment and he was fully available to provide otherwise for its disposition. We thus conclude that the impoundment was improper. Perforce, so was the subsequent inventory. Opperman, supra; Mayfield, supra; and Williams, supra.

III. Search Incident to Arrest

The government next argues that the search was valid as incident to a lawful arrest, placing its principal reliance on McGee v. United States, supra. This reliance is misplaced. In McGee, a search incident to a lawful arrest was made at the scene of the arrest and at the time of the arrest; i. e., there was unity of both time and place. Here, the search was neither at the scene of the arrest nor at the time thereof. The rationale of the "search incident to arrest" exception to the warrant requirement set forth in Chimel v. California, 395 U.S. 752, 89 S.Ct. 2034, 23 L.Ed.2d 685 (1969), lies in the need to permit a search of the person of an arrestee and of the area "within his immediate control" in order to: (1) protect the safety of the arresting officers, and (2) to prevent the destruction by the arrestee of evidence. Chimel defined "within his immediate control" as being "the area from within which he might gain possession of a weapon or destructible evidence." Id. at 763, 89 S.Ct. at 2040.

In light of the rationale for the "search incident to arrest" exception to the warrant requirement, it is not surprising that on facts similar to those here presented, we rejected the vigorous attempt of the government to sustain a search of a vehicle at a station house while the defendant was in custody inside the station house as one incident to an arrest. Mayfield v. United States, supra. There, as here, we recognized that Preston v. United States, 376 U.S. 364, 84 S.Ct. 881, 11 L.Ed.2d 777 (1964), and Dyke v. Taylor Implement Mfg. Co., 391 U.S. 216, 88 S.Ct. 1472, 20 L.Ed.2d 538 (1968), compelled us to reject the government's contentions. As the Supreme Court said in Preston: "Once an accused is under arrest and in custody, then a search made at another place, without a warrant, is simply not incident to the arrest." 376 U.S. at 367, 84 S.Ct. at 883. We hold that the search in this case, having taken place approximately 14 blocks from the scene of the arrest and some considerable time after the arrest, was not "incident to an arrest."

IV. Was the Intrusion "Reasonable" and thus Valid

The government contends that the "intrusion" involved in this case was "minimal," and thus should be sustained since it was "reasonable even in the absence of probable cause." It appears that the government thereby contends that where this court determines, apparently on an ad hoc basis, that a search is "reasonable," we should sustain its constitutional validity. While it is true that the Fourth Amendment only interdicts "unreasonable searches and seizures", it has been clear since at least Katz v. United States, 389 U.S. 347, 88 S.Ct. 507, 19 L.Ed.2d 576 (1967), that "searches conducted outside the judicial process, without prior approval by judge or magistrate, are per se unreasonable under the Fourth Amendment — subject only to a few specifically established and well-delineated exceptions." Id. at 357, 88 S.Ct. at 514 (footnotes omitted). And in Chimel, the Court said: "Such searches, in the absence of well-recognized exceptions, may be made only under authority of a search warrant. The 'adherence to judicial process' mandated by the Fourth Amendment requires no less." 395 U.S. 752, 763, 89 S.Ct. 2034, 2040, 23 L.Ed.2d 685 (1969) (footnote omitted). Having concluded that none of these "specifically established and well-delineated exceptions" is applicable in this case, as we are commanded by Katz, supra, and Chimel, supra, to do, we reject the government's invitation to venture forth on the uncharted sea of ad hoc adjudications of constitutional reasonableness.

Reversed.