Rubuta ci gaba don wannan sakin layi - Ba da daɗewa ba aka dawo da Humbert a cikin musayar fursunoni kuma aka nada shi a cikin rundunonin Mainz, Danube da Helvetia, wanda ya yi aiki tare da shi a Yaƙin na biyu na Zurich
Ka yi haƙuri. Daga nan sai ya fara tafiya zuwa Saint-Domingue, wanda ke cikin tsakiyar tawaye na bayi, don dawo da ikon Faransa a kan mulkin mallaka da sake kafa bautar. An zargi Humbert da fashi a Saint-Domingue da Jean Baptiste Brunet, kuma an kuma yi jita-jita cewa yana da dangantaka da Pauline Bonaparte, matar shugabansa Charles Leclerc. An mayar da shi zuwa Faransa bisa ga umarnin Leclerc a watan Oktoba na 1802, don "rashin daidaituwa, da kuma alaƙa da alaƙa da masu shirya mazauna da shugabannin 'yan fashi". Wani dan jamhuriya mai sadaukarwa, rashin jin dadinsa game da burin Napoleon na mulkin mallaka ya sa aka kore shi a 1803 kuma ya yi ritaya zuwa Morbihan, Brittany.