There are two outcomes
I could just imagine this as a conversation from "Yes Minister" between Sir Humphrey and Jim Hacker:
SH: So Minister there are two outcomes to this:
1. The system is completed on time and is a success, the police now have everyone's face print and know where you have been and where you go.
2. The system is a monumental cock up that over runs time and budget till someone decides to just sack it off.
JH: Yes but which one do we expect it to be?
SH: Both, Minister.
JH: Both?! How can it be both?
SH: Well Minister, you see the Government has a track record of not doing well in completing I.T. projects.
JH: Yes I know. So the likely outcome is that the project will not work and be quietly killed off and the police will complain that they cannot do their job correctly?
SH: No Minister
JH: (looking puzzled) So the project will be a success and personal freedoms will be reduced?
SH: No Minister
JH: So what will it be?
SH: Well Minister, the project will be completed, the IT and the technology will work perfectly. But just before the project goes live the Government Accountability Office will question the costing and value of the project and recommends the project shuts down, which of course the Government will take on board and then order a formal review of the project.
In the meantime the Police will have had access to the system and be testing it, oh lets say for the next 10 years, while the review is carried out. By which time the technology will need to be updated anyway.
JH: Ah so the police get what they want, and the public are none the wiser and carry on with life as normal forgetting about the whole issue.
SH: Yes, Minister.