Contractual obligations
Woah, whats going on, the Border force contract has minimum requirements of experience and IRT renewals, no way a cadet would qualify to fly on these sorties unless Cobham extort the Government to make whole sale changes to their contractual obligations, or they commit to having a training pilot on every cadet flight, in which case there is no advantage. But hey it wouldn't be the first time they got away with conning the government.