Bema, is a raised throne, where the judge pronounces judgment, It is seen normally in places like the Olympic games, where they judge rewards athletes for how well they performed,, When paul uses the term judgment seat in rom 14. he is speaking to believers, not unbelievers,
Krinos is a a legal term of a judge who passes judgment on criminals, He not only announces if they are guilty or innocent, he pronounces judgment on the person who is found guilty.
again remember, who is at the final judgement?
12 And I
saw the dead, small and great, standing before [
c]God, and books were opened. And another book was opened, which is
the Book of Life. And the dead were judged according to their works, by the things which were written in the books. 13 The sea gave up the dead who were in it, and
Death and Hades delivered up the dead who were in them. And they were judged, each one according to his works. 14 Then
Death and Hades were cast into the lake of fire. This is the second death. 15 And anyone not found written in the Book of Life was cast into the lake of fire.
Also remember, According to scripture. True believers, although thty may be physically dead, Are still called alive in Christ, they were just sleeping, not realy dead, to be absent from the body is to be present with the lord as Paul said.