The Department of Education, Sport and Culture says it won't reveal information about the use of supply teachers in the Island's secondary schools.
A Freedom of Information request asked how many teachers had stood in for lessons in each secondary school on the Island over the past five years.
In its response, the department said that would require substantial research or analysis, which it isn't required to do under FOI laws.
As a result, it says it's not obliged to comply with the request.
Repairs on Peel Power Station to get underway
Manx Care doctor survey to be discussed by Tynwald
Weather warning for snow tonight
MHK queries safety at primary school in Ballabeg
Gales put two ferry sailings at risk tonight
Should the Island throw a birthday party for Barry Gibb?
Warning issued over icy roads
High ground could see 4 inches of snow on Saturday night