Translate the following English sentence to French:
"We have no choice but to conclude that certain parties are taking advantage of this provocative act in order to demand even more oppressive measures against the political and democratic freedoms of the Greek people and it is among them that the physical and moral perpetrators are to be found."
Nous ne pouvons que constater le parti tiré par certains de cet acte provocateur en vue d' exiger des mesures encore plus répressives à l' encontre des libertés politiques et démocratiques du peuple grec. C' est parmi eux qu' il faut chercher les responsables directs ou les instigateurs du crime.