The bail must also be exonerated by the death of the defendant, the defendant's imprisonment in the state prison, or the defendant's legal discharge from the obligation to render the defendant amenable to the process.
Mont. Code Ann. § 27-16-505
Other circumstances in which sureties exonerated
En
Official source: Montana Code Annotated (Montana Legislature). Reproduced from public-domain Montana statutes; confirm against the official source for the current text. Not legal advice.