A man reporting for jury duty was arrested when security discovered that his cane concealed a 2 1/2-foot sword and a 6-inch dagger, police said.
Vladislav Lisetskiy, 40, was arrested Monday at Brooklyn Supreme Court as he attempted to pass through security, police said.
The cane "attracted attention because of the way it looked," said Maj. Luz Bryan, commander of courthouse police. "It had two metal bands. It's an indication that something is concealed. My officers noticed it right away."
New York state law prohibits concealed blades or knives.
"He kept saying that he didn't know it was illegal," Bryan said.
Lisetskiy was charged with misdemeanor criminal possession of a weapon.
There was no immediate indication if he had an attorney.