Widely adopted for more than 20 years in industrial fields, business rules offer the opportunity to non-IT users to define decision-making policies in a simple and intuitive way. When used conjointly with probabilistic graphical models (PGM) their expressiveness increase by introducing the notion of probabilistic production rules (PPR). In this paper we will present a new syntax for PPR making their use easier for business users and showcase how we managed to adapt to the compilation toolchain of an industrial rule engine accordingly.