What movie from the 70's involves a scene where the protagonist (a big city cop) has to go into store/ shop that is run by an old Chinese man. When the cop tries to catch the old man to ask him questions, the old man is very elusive and uses judo-like moves to avoid the cop. The shop is torn apart, but the old Chinese man laughs and laughs at by the big clumsy man.

I think it was a Jack Nicholson movie, but it could have starred Clint Eastwood or Charles Bronson. Not sure.

Any ideas?