You can withdrawl your agreement by calling the bondsman and telling them that you no longer want to be on the bond as you feel the ``criminal'' will not show up to court. You can sign off of the bail but they may arrest your friend.
Authority of Bail Bond Agents So, what authority do bail bond agents have? Bail bond agents can carry firearms (like regular citizens) and make arrests in California. However, they do not have the same power as police officers to investigate crimes, enforce traffic laws, or cordon off specific areas.