OSAKA -- Police will search both the head office of Snow Brand Milk Products Co. in Tokyo and its western Japan branch today on suspicion that professional negligence in connection with recent food-poisoning cases resulted in bodily injury, sources said Tuesday.

A special office to investigate possible criminal responsibility for the food-poisoning outbreak will also be set up today, some two months after Japan's largest dairy products company was implicated in the country's largest food-poisoning incident.

Police plan to confiscate records and data concerning production and consumer complaints at the company and to investigate why tainted milk products continued to be supplied even after the incident had surfaced.