To ask the Scottish Government, further to the letter from the Police Investigations and Review Commissioner (PIRC) to the Convener of the Justice Committee on 5 February 2018, in light of the PIRC's comment that "the shortage of resources throughout 2017 has undoubtedly impacted on the speed at which the investigation team has been able to complete its work", what discussions and correspondence it had with the PIRC regarding this matter, broken down by date...