“ it is possible in some circumstances for a witness to be ‘compelled’ by the coroner to give evidence (under the protection would be unusual for a POI in a suspected murder a coroner, where objection is taken by the witness under s 58(2). That is because compelling the witness to give evidence under the protection of a 61(7)(b) provides that any evidence obtained, even as an indirect consequence of evidence given under Therefore, if a witness is forced to give incriminating evidence, and is later charged with an offence, problems are likely to be faced by the prosecution in seeking to disprove that the evidence was not obtained as a direct or indirect consequence of the person having given evidence under compulsion. In practice therefore, where a POI is placed on the list of witnesses to be called by counsel assisting, the questioning of that witness (if objection is taken under s 58(2)) is in most cases likely to be short.”
https://www.nswbar.asn.au/docs/webdocs/BN_012014_coronial.pdf
This is interesting in the context of BS’s testimony being seemingly cut short..