On Monday, constitutional expert Luc Heuschling from the University of Luxembourg was in the Chamber of Deputies to deliver remarks on the case involving former Minister Carole Dieschbourg, addressing the question of whether the Chamber or the justice system are responsible for the Greens politician's hearing.

On 25 April, three days after Dieschbourg's resignation as Minister for the Environment, Climate and Sustainable Development, the Chamber unanimously decided that MPs would be in charge of the so-called 'Garden shed affair'.

However, constitutional expert Luc Heuschling then commented on the case in an RTL interview and noted that the Chamber should reverse its decision given that it is not actually in charge.

Heuschling noted: "One option is to say that the word 'minister' also applies to former ministers. A more restrictive option, of which I am a proponent, is to say that the word minister only applies to actual appointees. Others have to be treated according to the regular criminal law."

As a consequence, a narrow majority, 31 to 29, voted to hear the expert in the Chamber.

MP Josée Lorsché, the Greens' fraction president, elaborated on how she views Heuschling's assessment: "The problem is that our constitution fails to provide clear procedures. Heuschling showed that new laws can be drafted, which we could implement at short notice."

Co-fraction president MP Gilles Roth from the Christian Social People's Party (CSV) thinks that this proposal makes no sense: "In Luxembourg, laws always have to align with the constitution. If it notes that the Chamber is responsible for taking a decision, then I think the position is clear. CSV shares the view of the prosecutor's office that the Chamber should take a resolution and pass on the dossier, before Carole Dieschbourg can be heard."

MP Sven Clement from the Pirate Party believes the biggest concern of the Chamber is not making a procedural mistake: "The big question was whether it makes a difference that we are talking about a former minister. We received answers to some degree, but the Chamber also needs to take responsibility. Something that could have been done ten or 20 years ago with a respective law."

Both opposition politicians agree that the former minister should be heard soon. MP Roth concluded that the affair is being dragged out too much.

Nevertheless, as long as the issue of responsibility remains unresolved, the police cannot interview Dieschbourg. This means that to this day, she has not had a chance to deliver her view of the garden shed affair.

Members of the Chamber Bureau and the Conference of Presidents will meet at 5pm on Wednesday to take a final decision in the matter.