These issues include the exact way in which the suspected is informed about his rights, the distinction among different phases of criminal proceedings which would lead to a varying extent of the rights in each of these phases, the right to access the case file and the use of the term "case-file" unknown in some member states as well as the question of costs.
Sellisteks küsimusteks on täpne viis, kuidas kahtlusalust teavitatakse tema õigustest, vahet tegemine kriminaalmenetluse eri etappidel, mille tulemuseks võib olla õiguste erinev ulatus igal sellisel etapil, õigus juurdepääsuks kohtuasja toimikule ning termini „toimik” kasutamine, mida mõnes liikmesriigis ei tunta, ning kulude küsimus.