I can.
The most helpful way for me to explain those criteria that are used is to take you briefly through our process.
Initially we have a consultation with investigators who are considering these tools. During that consultation we explain to them—we demystify these tools and explain—just how complicated they are and the fact that they aren't necessarily going to be able to deliver the evidence they want, and we really encourage them to consider other, less invasive tools if possible.
Step one, we make sure they really understand what they're getting themselves into and have the resources to do it. Following that consultation, they have to submit an official request from their chain of command to our technical investigative services so there is executive awareness and oversight of their request to make sure it's been properly monitored.
After that request, and if it's approved on our side, then we have a second consultation involving their Crown prosecutor. Or, if they don't have a Crown prosecutor, we insist that a Crown be assigned so that a Crown understands the risks and the potential rewards of using these tools.
One thing we make clear during that consultation is that these are new technologies and we fully expect they will be litigated. We make sure they understand the litigation risk and the types of sensitive information that we're not able to share and would seek to protect under section 37 or section 38 of the Canada Evidence Act.
That whole process to date is really intended to make sure they understand that if there's another tool that works, they should use it, because these tools are complicated. Again, there's no guarantee they're going to work.
After all of those consultations, we do an engagement memo between our unit and the requesting unit to memorialize all the conversations, to set out the need to protect the tools. Only after that engagement memo is acknowledged by the commissioned officer overseeing that investigation would the assistance be provided. Of course, all that doesn't matter a whit unless judicial authorization has been granted through the process that we've described earlier in terms of a Crown agent, a proper authorization with all the terms and conditions we've included.
I hope that answers your question.