(1) Subject to section 5, a person is guilty of theft if he or she dishonestly appropriates property without the consent of its owner and with the intention of depriving its owner of it.

(2) For the purposes of this section a person does not appropriate property without the consent of its owner if -

(a) the person believes that he or she has the owner's consent, or would have the owner's consent if the owner knew of the appropriation of the property and the circumstances in which it was appropriated, or

(b) (except where the property came to the person as trustee or personal representative) he or she appropriates the property in the belief that the owner cannot be discovered by taking reasonable steps,

but consent obtained by deception or intimidation is not consent for those purposes.

(3)