Memo to Officer-in-charge
Thank you for sending the patient back to us for an update of his condition. He has informed us that it is your department's policy that memos from doctors are only considered valid for six months from the date of issue.
As indicated in our last memo, the patient is blind in both eyes and has had a below-knee amputation of his left leg. We regret to inform you that he had not sprouted new eyes nor has his leg grown back. As such, he is still classified as 'disabled'.
We would like also to inform you that it is unlikely that he will grow a new pair of eyes or a new leg, and so his 'disabled' status is unlikely to change in the conceivable future. Kindly consider exempting him from the stipulation of having to obtain a new memo every six months.