@JonB, @Just tell them to fuck off etc
In this case however this only means the current government cannot force a subsequent one to implement ID cards but it is unreasonable (and actually unlawful) to refuse to pay a supplier for work carried out or agreed. I am not too sure about the profit side of it, but I can see how it would be just, to an extent.
@ The fucking off request. They would sue the government in court. Then they would end up paying the amounts agreed / due plus court fees, plus lawyers fees, plus probably punitive fines/compensation. As this is my money (I am a taxpayer, rotten luck) I would rather they just paid what is due.
Look at it this way. A bloke arranges to have an extension built on his house, he obtains a builder and signs the contract.
The builder starts work, maybe turns down other work that would overlap, assigns staff and acquires the bricks and copper bits to do the job.
The homeowner then dies. Tragedy as it is the builder is now out of pocket. He has only done half a job and has a stack of hardware he may or may not be able to use elsewhere but he has not been paid.
The executer / recipient of the house in the will then has a choice. He can continue the extension, pay the builder and all carries on as normal. However he can decide he doesn't want the extension for whatever reason.
That is his right, he owns the place now. But the builder is still out of pocket and would quite rightly make a claim against the estate of the deceased at a minimum for expenses incurred but arguably also for the lost profit on the job. Any court in the land would grant this, as long as the builder had acted in good faith*
WRT ID cards, all you can do is remember this at subsequent elections and allow it to influence your vote.
*this bit doesn't count for governments as they never act in good faith. They are in fact legally exempt from acting in good anything.