Published: 17:55, 19 May 2017 |
Updated: 20:23, 19 May 2017
But IPCC Commissioner Cindy Butts said the investigation team was committed to providing answers to the families and had already collected 7,000 pages worth of evidence as part of a rigorous pre-interview process.
She added: “The officers have asked for time to understand and absorb the information that will be put to them in interview, which we have agreed so that the evidence we collect from them is as robust and comprehensive as possible. The integrity of our investigation depends on getting this process right.
"While we would have preferred to have been more advanced in our interviews with officers by this time, the investigation is ongoing and we are continuing to progress other investigative steps."
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