Most Federal Courts add a bail sufficiency requirement to the bond, also known as a “Nebia, Nebia Hearing, bail source Hearing or 1275 bail sufficiency hearing”. Basically the burden of proof is on the defendant and his/her family to show that the collateral and money paying the bond is from a legitimate source. A Nebia Hearing is the process where the bail defendant demonstrates thru a motion that is presented prior to the writing or posting a of Federal bail bond that this proof has been met.