Pull Apart Meaning

(idiomatic) to rigorously investigate the basis of an idea or theory.

Example: Used other than as an idiom: see pull,‎ apart.
to become separated as a result of pulling
  A weak rope will pull apart.
to separate two people or animals that are fighting
to dismantle a machine or other mechanical device.
  Starting with a couple of inconsistencies, the detective began to pull apart his alibi.