Although the veracity of these allegations is disputed, the Belgian Ministry of Justice accused Marx of it, subsequently arresting him and he was forced to flee back to France, where with a new republican government in power he believed that he would be safe.
Meskipun dakwaan tersebut dipersengketakan, Kementerian Kehakiman Belgia menuduh Marx terhadap hal tersebut, kemudian menangkapnya dan ia terpaksa kabur lagi ke Prancis, dimana sebuah pemerintahan republik baru yang berkuasa ia yakini akan menyelamatkannya.