AFAICS it does, and unsolicited goods do not immediately become the
recipient's. The recipient can inform the sender and request the
goods to be removed, which the sender must do within 30 days of
being informed, after which time the goods become the recipient's,
or the recipient can keep them for six months without informing the
sender,

IANAL. The law has since changed. I believe that unsolicited goods may now
be kept immediately. However, the specific law in question does not apply to
accidental deliveries. These are covered in different legislation. You can
only keep accidental deliveries if you reasonably believed that the goods
were not sent in error.

Christian.