Are there any cases involving the introduction of a biometric scan system?

Gerdau Ameristeel v. U.S.W., Local 8918, [2011] O.L.A.A. No. 405, is another case involving the employer’s introduction of a biometric scan system. Because there was nothing in the collective agreement that dealt with how the employer was to keep track of hours worked, the union’s arguments focused on whether the system was fair to employees or an invasion of their privacy.