See - 212140-41.pdf
"x x x.
Thus, probable cause can be established with hearsay evidence, as long as there is substantial basis for crediting the hearsay. Hearsay evidence is admissible in determining probable cause in a preliminary investigation because such investigation is merely preliminary, and does not finally adjudicate rights and obligations of parties. However, in administrative cases, where rights and obligations are finally adjudicated, what is required is “substantial evidence” which cannot rest entirely or even partially on hearsay evidence. Substantial basis is not the same as substantial evidence because substantial evidence excludes hearsay evidence while substantial basis can include hearsay evidence. To require the application of Ang Tibay, as amplified in GSIS, in preliminary investigations will change the quantum of evidence required in determining probable cause from evidence of likelihood or probability of guilt to substantial evidence of guilt.
x x x."
