Mr Hebblethwaite, whose basic annual salary is £325,000, also confirmed its new crews were being paid as little as £5.15 an hour - below the UK's minimum wage of £8.91 - apart from on domestic routes, but insisted this was allowed under international maritime rules.
Mr Shapps said: "What I'm going to do … is come to parliament this coming week with a package of measures which will both close every possible loophole that exists and force them to U-turn on this.
"We are not having people working from British ports... plying regular routes between here and France or here and Holland, or (anywhere) else, and failing to pay the minimum wage.
"It's simply unacceptable and we will force that to change."
The irony? Let me explain. International maritime rules are an international body or rules (think treaty), of which the UK is a founder member. Only one country signed up to the international maritime organisation before the UK and that was Canada.
Do I hear the other side of the house screaming about how the UK is going to "ignore" our international commitments and obligations???
Of course I don't. Because that would upset the voters.
Isn't it wonderful to know that our government, on all sides, has such flexible morality!
Personally I'm wondering how they're going to "force" this? Withdraw their license? What if they withdraw the service? We talk about all the other services being stressed to the limit simply by a delay in restarting the service and by people not wanting to use P&O. If they withdraw the service transport and trade will collapse across the channel.