Ala. Code § 12-21-143: Failure of Witnesses to Testify.

(a) Any witness refusing to testify, unless privileged by law from testifying in the case, must be committed to the jail of the county, there to remain without bail until he consents to testify.

(b) No witness so imprisoned shall be discharged at the adjournment of the court, or afterwards, until he gives bond and surety in an amount to be prescribed by the judge of such court, to be approved by the clerk of the court, payable to the state and conditioned to appear at the next session and give evidence in the case.