(21) Where feasible, the competent authorities should also abstain from presenting suspects or accused persons in court or in public while wearing prison clothes, so as to avoid giving the impression that those persons are guilty.
(22) The burden of proof for establishing the guilt of suspects and accused persons is on the prosecution, and any doubt should benefit the suspect or accused person. The presumption of innocence would be infringed if the burden of proof were shifted from the prosecution to the defence, without prejudice to any ex officio fact-finding powers of the court, to the independence of the judiciary when assessing the guilt of the suspect or accused person, and to the use of presumptions of fact or law concerning the criminal liability of a suspect or accused person. Such presumptions should be confined within reasonable limits, taking into account the importance of what is at stake and maintaining the rights of the defence, and the means employed should be reasonably proportionate to the legitimate aim pursued. Such presumptions should be rebuttable and in any event, should be used only where the rights of the defence are respected.
(23) In various Member States not only the prosecution, but also judges and competent courts are charged with seeking both inculpatory and exculpatory evidence. Member States which do not have an adversarial system should be able to maintain their current system provided that it complies with this Directive and with other relevant provisions of Union and international law.
(24) The right to remain silent is an important aspect of the presumption of innocence and should serve as protection from self-incrimination.
(25) The right not to incriminate oneself is also an important aspect of the presumption of innocence. Suspects and accused persons should not be forced, when asked to make statements or answer questions, to produce evidence or documents or to provide information which may lead to self-incrimination.
(26) The right to remain silent and the right not to incriminate oneself should apply to questions relating to the criminal offence that a person is suspected or accused of having committed and not, for example, to questions relating to the identification of a suspect or accused person.
(27) The right to remain silent and the right not to incriminate oneself imply that competent authorities should not compel suspects or accused persons to provide information if those persons do not wish to do so. In order to determine whether the right to remain silent or the right not to incriminate oneself has been violated, the interpretation by the European Court of Human Rights of the right to a fair trial under the ECHR should be taken into account.
(28) The exercise of the right to remain silent or the right not to incriminate oneself should not be used against a suspect or accused person and should not, in itself, be considered to be evidence that the person concerned has committed the criminal offence concerned. This should be without prejudice to national rules concerning the assessment of evidence by courts or judges, provided that the rights of the defence are respected.
(29) The exercise of the right not to incriminate oneself should not prevent the competent authorities from gathering evidence which may be lawfully obtained from the suspect or accused person through the use of legal powers of compulsion and which has an existence independent of the will of the suspect or accused person, such as material acquired pursuant to a warrant, material in respect of which there is a legal obligation of retention and production upon request, breath, blood or urine samples and bodily tissue for the purpose of DNA testing.
(30) The right to remain silent and the right not to incriminate oneself should not preclude Member States from deciding that, with regard to minor offences, such as minor road traffic offences, the conduct of the proceedings, or certain stages thereof, may take place in writing or without questioning of the suspect or accused person by the competent authorities in relation to the offence concerned, provided that this complies with the right to a fair trial.
(31) Member States should consider ensuring that, where suspects or accused persons are provided with information about rights pursuant to Article 3 of Directive 2012/13/EU, they are also provided with information concerning the right not to incriminate oneself, as it applies under national law in accordance with this Directive.
