Translate the following English sentence to French:
"However, having said that, the crucial matter is not the existence of a Charter but the proper safeguarding of the citizen, and the means by which the citizen achieves such protection today vary from Member State to Member State."
Ceci dit, la question essentielle n'est pas l'existence d'une Charte, mais la protection adéquate du citoyen et, aujourd'hui, les moyens par lesquels les citoyens obtiennent cette protection varient d'un État membre à l'autre.