People's opinions vary over time.
Let me use an example based on clear circumstances. As a result of Edward Snowden's revelations, there has, of course, been a spike in public concerns about respect for rights, including the right to privacy. After a terrorist event, the scales usually tip the other way.
I suggest that you assume that the public is concerned about both physical security and their rights. Depending on the events, those concerns may fluctuate.
In my opinion, your job, mine and that of the executive power is to put in place legal rules that respect the balance over a certain period of time, regardless of revelations and terrorist events. Legal rules must also take into account any realities in time. Then there should be a review.
The bill provides a number of good suggestions, but I think we have a role to play in ensuring that officers apply those rules correctly on a daily basis.