The binding legal principles established are: (1) Courts have statutory power under s 116 of the Criminal Procedure & Evidence Act to alter or vary bail conditions previously imposed, as an exception to the functus officio doctrine; (2) Bail conditions must satisfy the constitutional requirement of reasonableness under s 50(6) of the Constitution, and circumstances may change such that a condition reasonable when imposed becomes unreasonable if continued; (3) The surrender of a passport as a bail condition is not intended to deprive an accused person of their livelihood, and doing so would violate the presumption of innocence guaranteed by s 70(1)(a) of the Constitution; (4) An accused person on bail must be allowed to continue their lawful activities and earn a livelihood, provided this does not defeat the administration of justice; (5) In determining whether to vary bail conditions involving passport release, the court must assess whether there is evidence creating a reasonable inference of likelihood of absconding, and the assessment must be based on facts, not speculation; (6) The relative strength of the State's case is a relevant factor in assessing flight risk—an accused facing relatively weak evidence is less likely to abscond than one facing compelling evidence; (7) The existence of other substantial security (such as valuable property that would be forfeited) is relevant to assessing whether temporary passport release poses unacceptable risk; (8) In bail applications, evidence including hearsay, affidavits, and written reports may be considered under s 117A(4), and strict rules of evidence do not apply.