With reference to his reply to question 1812 on 20 October 2014, (a) how many members of the SA Police Service (SAPS) at the Bedfordview Police 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) for what reasons did each SAPS member at the specified police station not attend the required number of shooting practices?