He was recalled in 1810, when the Hanse towns were united, or, to use the phrase of the day, re-united to the Empire.

He then hung about Paris, keeping on good terms with some of the ministers--Savary, not the most reputable of them, for example.

In 1814 he was to be found at the office of Lavallette, the head of the posts, disguising, his enemies said, his delight at the bad news which was pouring in, by exaggerated expressions of devotion.

He is accused of a close and suspicious connection with Talleyrand, and it is odd that when Talleyrand became head of the Provisional Government in 1814, Bourrienne of all persons should have been put at the head of the posts.

Received in the most flattering manner by Louis XVIII, he was as astonished as poor Beugnot was in 1815, to find himself on 13th May suddenly ejected from office, having, however, had time to furnish post-horses to Manbreuil for the mysterious expedition, said to have been at least known to Talleyrand, and intended certainly for the robbery of the Queen of Westphalia, and probably for the murder of Napoleon.
In the extraordinary scurry before the Bourbons scuttled out of Paris in 1814, Bourrienne was made Prefet of the Police for a few days, his tenure of that post being signalised by the abortive attempt to arrest Fouche, the only effect of which was to drive that wily minister into the arms of the Bonapartists.
He fled with the King, and was exempted from the amnesty proclaimed by Napoleon.