Secker was born in Happy Valley, South Australia, and was educated at Flinders University, Adelaide gaining a degree in Economics and Politics.
He was a primary producer, small business retailer and company director before entering politics.
He was Secretary of the Opposition backbench committee on Agriculture and Infrastructure as well as Chair of the Liberal Party Rural and Regional affairs Committee and a member of the Liberal Party Federal Executive and Federal Council.
[1] In September 2007 he was found guilty of tailgating a prime mover by the Magistrates Court at Berri in the SA Riverland, given a $450 fine and lost one demerit point.
In his defence, Secker stated: I think I'm like most people and that's why I challenged that ruling is that when you pass a B-double you need to speed up.