Ombudsman Nuala O’Loan will reveal today the findings from her probe into the first fatal shooting by the Police Service of Northern Ireland.
Her investigators have been examining how officers opened fire during a surveillance operation on a car being driven by Neil McConville in April 2003.
Mr McConville, 21, was hit in the shooting near Lisburn, Co Antrim and died later in hospital.
Ahead of publication of the Ombudsman’s report, campaign group Relatives for Justice claimed it did not examine the overall operational planning which led to Mr McConville being shot.
Mark Thompson, RFJ’s Director, claimed: “This operation involved huge covert resources and also relied on the tactical support of the British army. It was an investigative failure not to fully investigate this aspect of the killing.
“In our view the failure to investigate this area, coupled with the fact that a number of key PSNI personnel responsible for planning the operation have took early retirement thus avoiding scrutiny from the Ombudsman’s investigation is equally an investigative failure.”