To ask the Secretary of State for Business, Innovation and Skills, pursuant to the Answer of 13 July 2015 to Question 5609, how many HM Revenue and Customs investigations that commenced on or after 1 October 2013 resulted in the issuing of Notice of Underpayment (NOU) of the National Minimum Wage to the employer; how many of those employers receiving an NOU were exempt from his Department's revised naming and shaming scheme on the basis that the total arrears were less than £100; how many of those employers successfully appealed against being named or shamed; and how many of those employers have been publicly named or shamed under that scheme.