translate English to French: However, to be fair, we should point out that, in numerous cases the constitutions of some signatory States, including some Member States, prohibit the extradition of their own citizens and constitutional amendments are therefore needed before this agreement can be ratified.
Pour être honnête, il faut signaler que pour certains États signataires et parmi eux, certains États membres, la constitution interdit, dans un grand nombre de cas, de livrer ses propres ressortissants.