The sudden resignation of Suntory Holdings Chairman and CEO Takeshi Niinami may have a far-reaching impact beyond the beer and spirits maker, given his influential role in Japan’s business community and in government economic policy.

Suntory announced Tuesday that Niinami, known as one of the most outspoken Japanese business leaders, has resigned from his posts after being questioned by police over the alleged purchase of supplements that may contain substances that are illegal in Japan.

Speaking as the chairman of Keizai Doyukai (the Japan Association of Corporate Executives) on Wednesday, Niinami said he did not violate the law.