Battle of Jersey - Aftermath

Aftermath

It became notorious that there were traitors among the British. De Rullecourt possessed a plan of the fortifications, the towers, the cannons and so on, saying that without good friends in Jersey, he would not have come. The French knew the exact number of British troops and militia, the names of the officers commanding them, and more. In the papers found in the General's trunk was the name of one Mr. Le Geyt, a Jerseyman who was later seized, as was another suspect.

Conway had proposed the construction of 30 coastal round towers in 1778, and four had been completed by the time of the battle, however they played no part in it. Between 1781 and 1814, nineteen more round towers and three Martello towers were built to improve the defence system of the island.