Nolan hid the jewellery in the nursery and used a code to protect the stolen goods and delay their discovery. By concealing the loot in a large jug of earth with a growing fir tree, he chose an inconspicuous and natural hiding spot unlikely to be searched quickly. The code served as a secret map, ensuring only someone who understood the clues—likely his accomplice—could find the jewellery later. This plan allowed Nolan to safeguard the jewellery until it was safe to retrieve, avoiding immediate detection by the police. The use of a code added complexity, making it difficult for others to interpret without specialized knowledge or sharp reasoning.