Translate the following English sentence to French:
"We have agreed that a study will be carried out which will also be linked in with a study commissioned by Mr Rothley into what exactly it is that the parliamentarians need in the way of support for their work."
Il y aura une enquête, nous l'avons convenu, une enquête qui sera associée à celle de M. Rothley, concernant le soutien précis dont ont exactement besoin les députés pour leur travail.