In recent years, Spatially Offset Raman Spectroscopy (SORS) has gained significant applications due to its unique and efficient capability to detect target substances concealed within strongly scattering interfering media Extensive and profound investigations have been conducted to demonstrate the performance characteristics of SORS However, there is a lack of a comprehensive study exploring the detection of materials with varying optical properties by SORS This research endeavors to bridge this gap by constructing a concise bilayer model In this model, two distinct interferents with different optical properties are layered onto the target material Through the analysis of the Raman intensities originating from the surface interferent and the underlying target material, we investigated the SORS performance when probing substances with varying degrees of scattering Our findings indicate that under identical detection conditions, the higher scattering surface interferent need a larger spatial offset for effective detection by SORS Consequently, this study demonstrates the substantial potential of SORS technology in noninvasive detection applications for sublayer components Moreover, it provides a comprehensive understanding of the SORS