According to RFI, the blame lies with Ukrainian Prosecutor General Viktor Shokin, who was appointed by Poroshenko and currently faces the possibility of being asked to resign.
It said that in addition, Victor Shokin is accused of having failed to go ahead with key legal proceedings associated with the 2014 transition of power, both against representatives of former president Yanukovych's "authoritarian and corrupt regime" and the alleged perpetrators of last year's deadly clashes on Maidan Square.
Additionally, Shokin has stalled in the creation of an anti-corruption bureau, despite the fact that introducing such a government authority was one of the conditions Ukraine must meet before the EU lifts its visa requirements for Ukrainians, RFI reported.
Shokin and his team were accused of covering for some close associates of Poroshenko and Yatsenyuk who were implicated in corruption scandals and money laundering in Ukraine and elsewhere.
Even though there is no clear proof that Poroshenko uses his country's current judicial system for personal political purposes, the fact remains that he never implemented the promised reforms, and that he is the only tycoon whose wealth has increased this year, according to RFI.
It recalled that last Saturday, a protest rally was held near Poroshenko's plush residence, with demonstrators demanding that their president should step down.
The incident, which is still being investigated, clearly indicates that the situation could further deteriorate very quickly, RFI concluded.