It’s been just three and a half weeks since the TTC implemented its random drug testing policy and four employees have already tested positive while on the job.

TTC spokesman Brad Ross says two more employees have failed testing in the weeks following the May 8 launch of the program, when two workers failed on the first day.

The transit agency has not disclosed the type of substances used, although three were for drugs and one was for alcohol. They also will not comment on the discipline handed down or the positions of the employees, except to say no drivers were among those who failed the tests.

Ross say while the positive results are disappointing, it does vindicate their decision to go ahead with the tests.

“This is about safety. This is about ensuring that the public, our customers, motorists and the workplace itself is safe from anybody who may be impaired in the workplace.”

For the past five years the union has fought hard to stop the random tests, calling the policy a fear tactic that provides a false sense of security. They continue to lobby against the plan, however, they have stopped short of telling their members to refuse the tests.