In criminal law, self-incrimination is the act of exposing oneself generally, by making a statement, "to an accusation or charge of crime; to involve oneself or another [person] in a criminal prosecution or the danger thereof". (Self-incrimination can occur either directly or indirectly: directly, by means of interrogation where information of a self-incriminatory nature is disclosed; or indirectly, when information of a self-incriminatory nature is disclosed voluntarily without pressure from another person).
In many legal systems, accused criminals cannot be compelled to incriminate themselves—they may choose to speak to police or other authorities, but they cannot be punished for refusing to do so. There are 108 countries and jurisdictions that currently issue legal warnings to suspects, which include the right to remain silent and the right to legal counsel. These laws are not uniform across the world; however, members of the European Union have developed their laws around the EU's guide.
In Canada, similar rights exist pursuant to the Charter of Rights and Freedoms. Section 11 of the Charter provides that one cannot be compelled to be a witness in a proceeding against oneself. Section 11(c) states:
Any person charged with an offence has the right ... not to be compelled to be a witness in proceedings against that person in respect of the offence ...
An important caveat in Canadian law is that this does not apply to a person who is not charged in the case in question. A person issued a subpoena, who is not charged in respect of the offence being considered, must give testimony. However, this testimony cannot later be used against the person in another case. Section 13 of the Charter states:
A witness who testifies in any proceedings has the right not to have any incriminating evidence so given used to incriminate that witness in any other proceedings, except in a prosecution for perjury or for the giving of contradictory evidence.
Historically, in Canadian common law, witnesses could refuse to give testimony that would self-incriminate.