11. Suppression, etc., of documents.
(1) A person is guilty of an offence if he or she dishonestly, with the intention of making a gain for himself or herself or another, or of causing loss to another, destroys, defaces or conceals any valuable security, any will or other testamentary document or any original document of or belonging to, or filed or deposited in, any court or any government department or office.
(a) A person who dishonestly, with the intention of making a gain for himself or herself or another, or of causing loss to another, by any deception procures the execution of a valuable security is guilty of an offence.
(b) Paragraph (a) shall apply in relation to -
(i) the making, acceptance, endorsement, alteration, cancellation or destruction in whole or in part of a valuable security, and
(ii) the signing or sealing of any paper or other material in order that it may be made or converted into, or used or dealt with as, a valuable security,
as if that were the execution of a valuable security.