A 57-year-old Mississauga, Ont., man accused of selling a lethal substance to people at risk of killing themselves has been re-scheduled to appear in court next week.

Peel Regional Police arrested Kenneth Law in early May and charged him with two counts of counselling or aiding suicide after investigating two recent deaths in the area.

Law briefly appeared in a Brampton, Ont. court on Tuesday afternoon, where the case was put over. He is scheduled to return to court in the afternoon on June 7.

Law is accused of using several websites to market and sell sodium nitrite.

While the substance is commonly used to cure meats, Ontario's Office of the Chief Coroner says it can be deadly, as 37 people have died from sodium nitrite over the past five years.

Police say their investigation has revealed at least 1,200 packages were allegedly sent to 40 countries.

With files from The Canadian Press