During the opening of the al-Sweady public inquiry, Jonathan Acton Davis QC is expected to deliver a a comprehensive outline, including why the inquiry was ordered and what it aims to identify.
The inquiry will also look at, an original Royal Military Police investigation into what happened.
Since 2009, the database compiled by the Iraq Historic Allegations Team has ben searched for any relevant material.
We felt we couldn't keep postponing the start of the inquiry just for that, but by the time the military evidence starts in September we want to have completed the search.
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The Prince and Princess are being treated to a petting zoo and a puppet show along with the children of local military families.