driving an unmarked car observed defendant in a parking lot at about 1:15 a. m. Defendant was known to the officers. Defendant was standing by a white or cream colored over beige 1967 Chevrolet II. After several minutes two men approached defendant and conversed with him. One or the other would walk around a building and soon return. One carried "a bar of some type" about 12 or 15 inches long. One of the men got the bar out of the car. The three left and the detectives radioed police headquarters for help.
The two detectives walked to the end of the parking lot. They had a clear view through an open door into the office building of Ogden and Adams Lumber Company located nearby. Defendant was outside bythe door apparently looking in. His two companions were inside. Defendant walked back and forth in front of the building several times.
The two detectives returned to their car and again radioed for assistance. They then separated "to cover the building and to effect the apprehension of the two people inside." The two were still in the building. One of the detectives yelled "police officer." The two fled leaving behind during their flight three small crowbars. They were soon apprehended by the reenforced police detail.
Defendant was not at the building when the officers returned after their second call for assistance. He was seen walking back into the parking lot. He was stopped and told to remain where he was but while the officer was helping apprehend the other men