After the war, Victor Coysh visited again . He left the island hurriedly, as it had been thickly sown with mines and he was uncertain if all had been removed. Laterly it was occupied by Crown tenants, Robin and Mrs Borwick. However it has been acquired now by 'The States of Guernsey' and a report was presented in 1996 as to the future use of this little Island. Favored is an Island dedicated to enviromental studies with schools and other groups useing the few 'facilities'.
Work is now in hand to enable schools and colleges to study on the island.
Compton Mackenzie, during his residence on Jethou nearly seventy years ago, wrote books and looked after the garden. Robert, Duke of Normandy, gave the islet to Restald, his master of shipping in 1032. A man of religious inclination, he became a monk and bequeathed it to the Abbey of Mont St Michel. It is said that honest slow sailing cargo vessals passing by could see the corpses of felons, freebooters, murders and sheepstealers hung on gibblets on top of Jethou to rot away in the wind. They were there as a warning to evildoers.