The difference between a bribe and a tip is that the former comes before the service as a condition of getting the service, whereas the latter comes after the service and may only be a condition of further service (or quality of service).

The moral bankrupcy of the Blair government is pretty transparent. Heseltine lost his chance to become PM because of Westland in the 80s, but now it's "not in the public interest" to find who had their sticky fingers in this.

Graham.