81.   Violations are determined by investigations into how many retailers are selling tobacco to minors.

82.   He declined to speculate who was responsible, saying that was for the official investigation to determine.

83.   He said an investigation to determine the exact cause of the fire had already been launched.

84.   In addition, an investigation determined that the fund never bought securities.

85.   An investigation must determine if the pasta is unfairly subsidized.