RCW 6.19.040: Justification of sureties.

If the adverse claimant posts a bond and the sheriff requires it, the sureties shall justify as in other cases, and in case they do not so justify when required, the sheriff shall retain the property; if the sheriff does not require the sureties to justify, he or she shall stand good for their sufficiency. The sheriff shall date and indorse acceptance upon the bond.