I've come across a couple of secondary sources stating that three deserters from the 5th battalion of the 60th were interviewed by Napoleon on the 19th of December 1808 and gave him details of where Sir John Moore's army were. One source also mentions that they were former French POWs and had been captured at Trafalgar! Unfortunately neither source has a reference and I could do with a primary source for this. Has anyone come across anything?

Thanks

Rob