A man who stumbled into a butcher shop next door to a bank that had just been robbed, trailing bundles of money and dripping red dye powder, was chased and held for police yesterday by a butcher armed with a pistol, Fairfax County police reported.

Police arrested Wesley J.B. Wood, 29, of Richmond, who they said was being held at gunpoint by Joseph W. Davis, proprietor of the Village Butcher Shop.

Police said that just before noon a man entered the Dominion National Bank, 6259 Little River Turnpike, in the Brighton Mall Shopping Center in Lincolnia. He stood in line and eventually gave a teller a paper bag and a note demanding money, they said.

The teller returned the bag to the man with an undisclosed amount of cash, according to police.

A few moments later, police said, a red dye packet that had been included with the money exploded as a man walked into the butcher shop next door.

Davis said the man walked in "looking like he's looking for a place to duck," with red dye smoking from a paper bag and bundles of cash falling to the floor from its torn bottom.

The man turned and fled, according to Davis, 40, of Mt. Vernon, who said he followed after grabbing a loaded .357 Magnum that he keeps nearby.

Davis said he caught up with the man behind the shopping center and that the man stopped promptly when he turned and saw the gun. "He didn't say a word. He just looked like he was scared," Davis said. "I felt sorry for him. I think he thought I was going to shoot him."

A plainclothes Fairfax County police officer saw the chase and made the arrest.

Wood was being held on a bank robbery charge in the Fairfax County Adult Detention Center in lieu of $50,000 bond.