The bell ringers / Henry Porter.

Enhanced descriptions from Syndetics:

In Henry Porter's novel, The Bell Ringers , England in the near future appears largely unchanged. There are concerns over the threat of terrorism, the press is feisty, and the prime minister is soon to call a general election. But quietly--and largely unknown to the public or even most in government--things have become undeniably Orwellian: cameras with license plate recognition software record every car's movements; a sophisticated top-secret data-mining system known as Deep Truth combs through personal records and identifies petty criminals as well as those disposed to "antigovernment" beliefs. In the interest of security, the divide between private and public has crumbled, and freedom has given way to control. Once the prime minister's head of intelligence, and one of those who knew about Deep Truth, David Eyam suffered a fall from grace and then died in a terrorist bombing. Now his former lover has been named as the benefactor of his estate. But Eyam has left her more than just his wealth; she is also the heir to his dangerous secrets and unfinished business. Absorbing, eerie, and unsettlingly realistic, The Bell Ringers is a fearless work from a talented novelist at the top of his game.