Where a witness report has been captured and kept as an audio recording, there is important additional information that can be learned from the way that things were said, that are not conveyed through the wording, but by making use of various paralinguistic means (prosody, pitch, volume, intonation).
in spontaneous speech, silences and filled pauses (like 'eh') are important cues to a speaker's emotional state and involvement (Tisljar-Szabó & Pléh, 2014).