Can hearsay evidence be used in a probation revocation proceeding?

"As long as hearsay testimony bears a substantial degree of trustworthiness it may legitimately be used at a probation revocation proceeding. [Citations.] In general, the court will find hearsay evidence trustworthy when there are sufficient `indicia of reliability.' [Citation.] Such a determination rests within the discretion of the trial court and will not be disturbed on appeal absent an abuse of discretion. [Citation.]" (People v. Brown, supra, 215 Cal.App.3d 452, 454-455.)