We have used the ability to seek an order from the court to compel testimony from an individual.
You're correct in saying that if we get testimony from an individual we cannot use that testimony against that person.
We have used it in instances where we have documents that need some explanations. For reasons maybe of that person being under certain confidentiality obligations, we will seek a section 11(1)(a) order to compel testimony from that person. We've also used it in situations where maybe.... To give an example of where we could use it, if companies are involved in an illegal criminal cartel under the Competition Act, often people don't put those legal agreements in writing and oral testimony may be how we would be able to get the evidence we need to uncover it. It is a tool that we use, but you are right, we cannot use that testimony against those individuals.