Senator Bill Heffernan was (is?) the Chairman of the Senate...

Senator Bill Heffernan was (is?) the Chairman of the Senate Select Committee on Agriculture and Related Industries.
(see http://www.aph.gov.au/senate/committee/agric_ctte/food_production/report/a01.htm)

But why his paper was submitted to his own committee under the name of David Mond?
(See article of number 113, at http://www.aph.gov.au/senate/committee/agric_ctte/food_production/submissions/sublist.htm)

What's the relationship between the two men?