I agree with my colleague.
The committee's mandate is to review the exercise of powers and performance of duties and functions pursuant to the declaration. We must assess whether this exercise was reasonable. For example, we must look at what was seized and at how and why it was seized. We must determine whether we cast a wide enough net or whether the net was too wide. However, in order to assess whether these actions were legal or reasonable, we need information on what led to the declaration of emergency. We can't assess this in abstracto, starting on a certain date and ending on another date, without knowing the background of the decision, the issues involved and the facts that justified the emergency declaration. Otherwise, we'll miss part of the story. When part of the story is missing, we may get things wrong.
It's much better to look at the background and circumstances that led to the emergency declaration. We can then assess the reasonableness of the subsequent actions.