With reference to his reply to question 1803 on 20 October 2014, (a) how many members of the SA Police Service (SAPS) at the Norkem Park Station are in the (i) low-risk category, requiring one shooting practice session in each year and (ii) high-risk category, requiring two shooting practice sessions in each year and (b) what are the reasons that each member of the SAPS at the Norkem Park Police Station did not attend the required number of shooting practices?