[Sorry, my post overlapped with RainyDay's]
I obviously don’t know anything about your company, what you do, or their track record when it comes to dealing with staff. More importantly I know nothing about the UK company which I presume now call the shots. Bear these points in mind when you consider what I’m going on to say.
I suggest that before you start focussing on the legalities you try to find out what’s behind the medical tests. It may not be something bad necessarily. Personally I’m delighted that airline pilots, train and bus drivers etc are required to undergo medical tests and if I was in the early but curable stages of cancer I’d like to know that too. I worked for an organisation which paid to have staff undergo a comprehensive medical test once every 4 years. 2 of my former colleagues are alive today because the stress test detected that they were in imminent danger of having a heart attack.
In my opinion you need to ask the company what’s behind the tests before you decide what your reaction should be. Bear in mind that if you ultimately find it appropriate to involve an external regulatory agency (such as the Labour Court for example) you will be expected to have raised the matter internally. Talk to your rep if you are in a union otherwise send a small delegation to meet the management people involved. Ideally you should ensure that all staff are of the one mind about the matter. Be calm and polite, but insistent, and document what takes place.
You may be encouraged to know that a company cannot make a material change to your contract without seeking your agreement:-
“Changes to your contract of employment in Ireland can occur due to a change in the law, but otherwise, changes must be agreed between your employer and yourself. Neither party can unilaterally decide to change the contract. The rights of employees and employers regarding changes to contracts are set out under the Terms of Employment (Information) Act, 1994.”
You’ll find more about this and related matters in
http://www.citizensinformation.ie/categories
Or your local Citizens Information Centre will have a useful book called something like “Your Employment Rights Explained”. They’ll post it to you if you can’t call in.
Even if you don’t have a written contract, a contract exists purely by virtue of the fact that you are working for an employer. Your statutory rights are fully protected and ‘custom and practice’ covers everything else. That means that if something has been done that way for a while, like going home early on Christmas Eve, a court could decide that that is now part of your contract by ‘custom and practice’.
A useful contact for you is the ‘Employment Rights Information Unit’ of the Dept of Enterprise, Trade and Employment. Telephone during normal business hours including lunchtime 01 631 3131 or LoCall 1890 210 615. The website is
http://www.entemp.ie/