Sharp practice

The typical political sharp practice of manipulating history to suit the current agenda.

This action was later regarded by some as a piece of rather sharp practice, but Bidder claimed that the landowners concerned […] refused to sell the ground for the railway unless the whole of their property was purchased at a suitable profit to themselves.

2007 August 29, letters to the editor, “More reports from the check-in desk”, in The Guardian, If this is not actually illegal, it certainly appears to be a sharp practice.