The Belfast-based Committee on the Administration of Human Rights has criticised plans to publish just 15 pages from a 3,000-page report on the inquiry into alleged British collusion in the 1989 murder of Catholic solicitor Pat Finucane.
The committee said the decision was a scandal and an effective waste of the €4m spent on the inquiry, which was carried out over the last decade by John Stevens, the Commissioner of the British Metropolitan Police.
Mr Stevens is due to deliver his report to PSNI chief constable Hugh Orde on Thursday.
Paul Mageean, a spokesman for the Committee on the Administration of Human Rights, said: "There may be names in the report that could put peoples' lives at risk, but after four years, to get so little is unacceptable. This is no better than Stevens' first report, which we never got to see."