Madrid Is Calling "I like to think of myself as being a name someone can call in the New York Police Department if there is some illegal activity, or a suspicion of a criminal act, involving art," Mr. Keenan said.

A spokesman for the Finance Directorate, which is an arm of the federal Finance Ministry, said a three-day investigation of the company, Imhausen-Chemie, a pharmaceuticals manufacturer in Lahr, "yielded no reason for suspicion of a criminal act through illegal exports."