The military did not get involved in the MCA Interim contract because industry would not provide unbiased aviation information. As already stated, the MCA retains the services of an unbiased aviation consultant (who was also involved in the acceptance of the Interim contract by the MCA). This company openly advertises that they advise the MCA on SAR helicopters, on their website
Consultavia - Aviation advice and consultancy services for helicopter users and operators
The joint MCA/MOD IPT was to have been formed solely for the SARH Contract. When MOD programme delays slipped the project to the right then the resources of the joint MCA/MOD IPT were assigned to the writing and evaluation of the MCA Interim contract. Acceptance and oversight of the MCA Interim contract was, and is, an MCA matter.
In addition to late delivery of the aircrfat, Sirkorsky have had 'certification' issues with the long range tanks in the S92. Any contractual implications in this delay in achieving full operating capability is again, a matter for the MCA, CHC and Sikorsky.