delivered the opinion of the Court.
This is an interlocutory appeal, pursuant to C.A.R. 4.1, to obtain review of an order suppressing evidence obtained by the police in a narcotics investigation. We affirm.
The defendant was charged with possession of a dangerous drug (marijuana) with intent to dispense. Sections 12-22-412 and 12-22-404, C.R.S. 1973. The evidence which ties the defendant to the crime charged was taken from the defendant’s automobile following his arrest. The automobile was stopped and the arrest was made without a warrant. Defense counsel filed a motion to suppress, asserting that probable cause did not support the arrest and that an invalid arrest requires that all evidence seized incident to the arrest be suppressed.
See People
v.
McPherson,
The issues before us on appeal are (1) whether probable cause existed for the arrest and search in this case, and (2) whether the stop of the defendant and subsequent discovery of the marijuana can be justified as an “investigatory stop” under the line of cases which culminated in
People
v.
*210
Casias,
I.
Probable Cause
The minimum requirement for an arrest to pass constitutional muster is the existence of probable cause to believe that a crime had been committed by the defendant. The two-prong
Aguilar-Spinelli
test for measuring probable cause based upon information received from third parties has been interpreted and reviewed by us on many occasions.
See, e.g., People
v.
King,
The reliability of the informant was never established. The record does not establish how or when his assertions were made. Moreover, there was no supportable factual basis for the informant’s assertions.
The prosecution had the burden of establishing probable cause to support the warrantless arrest.
See, e.g., People
v.
Chacon, 177
Colo. 368,
II.
Investigatory Stop
On appeal, the prosecution suggests that the stop of the defendant’s vehicle was an “investigatory stop” within the constitutional guidelines most.recently articulated in
People v. Casias, supra.
The prosecution’s contention is not sound. The record reveals that, far from being an
investigatory
stop, the officers’ purpose in stopping the defendant’s car was to make an arrest and search. Evidence before the trial court indicated that the defendant was arrested and handcuffed prior to the time that his automobile was searched. As noted in
People
v.
Casias, supra,
a legitimate basis for making the “stop” must exist to support the stop. To rationalize an arrest, which is defective for lack of probable cause, as an “investigatory stop” is to create an unprecedented exception to the traditional constitutional constraints on arrest. We decline to create such an exception.
See People
v.
Williams,
Ruling affirmed.
