Trevor Ó Clochartaigh (Sinn Fein) | Oireachtas source

I will put it to Mr. Ó Caigne as a suggestion. I did some market research in a previous job. If one wants to gauge the need for a service, one engages a company to take a sample of the population and ask a number of questions about the types of services people would like to use. Potentially, one such question could be "would you use a service as Gaeilge if it was available?". That would be a much more accurate measure of demand than asking the Departments to self-refer, as such.