Cautioned statements
23.—(1)  If, during an investigation, a person (referred to in this section as the accused) is charged with an offence or informed by a police officer or any other person charged with the duty of investigating offences or charging offenders that he may be prosecuted for an offence, he must be served with and have read to him a notice in writing as follows:
You have been charged with [or informed that you may be prosecuted for] —
(set out the charge).
Do you want to say anything about the charge that was just read to you? If you keep quiet now about any fact or matter in your defence and you reveal this fact or matter in your defence only at your trial, the judge may be less likely to believe you. This may have a bad effect on your case in court. Therefore it may be better for you to mention such fact or matter now. If you wish to do so, what you say will be written down, read back to you for any mistakes to be corrected and then signed by you.”.
(2)  If an accused, after the notice under subsection (1) is read to him —
(a)remains silent; or
(b)says or does anything which intimates his refusal to give a statement,
the fact of his remaining silent or his refusal to give a statement or his other action must be recorded.
(3)  A statement made by an accused after the notice under subsection (1) is read to him must —
(a)be in writing;
(b)be read over to him;
(c)if he does not understand English, be interpreted for him in a language that he understands; and
(d)be signed by him.
(4)  No statement made by an accused in answer to a notice read to him under subsection (1) shall be construed as a statement caused by any threat, inducement or promise as is described in section 258(3), if it is otherwise voluntary.
(5)  A copy of a statement recorded under this section must be given to the accused at the end of the recording of such statement.