Yes, if they believe there's been a kidnapping. Not if they believe there's been a homicide. Logan has conveyed in news interviews several times that SAPD believes Elizabeth killed Gabe.
The only reason they are searching for Gabe alive one last time right now is because of public pressure and their desire to protect their public reputation/perception.
It's red tape of the worst kind. Gabe is a human being. There is not one single piece of physical evidence that he is dead. He deserves to be looked for, actively and diligently.
Well their public reputation and perception is not boding well with me today. Redtape can be cleared up real fast if they want it too. You are right Gabe is a human being and there is no physical evidence that he is dead so I ask and plead to the SAPD, why not give this 100% effort and include the FBI in your one last shot to find him?