Whether techniques for gathering evidence, such as collecting DNA, fingerprint, and handwriting samples, are constitutionally acceptable techniques?
What does "witness" mean under Article 20(3), and what is included by its scope?
Does being in police custody automatically imply that the witness was coerced or not?
It is not sufficient to claim that an accused person was forced to testify against himself because he gave a statement while being held by the police. In other words, the mere fact that the accused was being held by the police at the time the disputed statement was made would not, by itself, give rise to the legal conclusion that the accused was forced to make the statement.