What does "get filed with" mean? (Does it mean "intertwined with"?)
Native speaker’s answer
Rebecca
"Get filed with" means a document is placed and put away with similar documents. In this show, Rosa is telling him that the weapon in the case was labeled wrong, which means that it could have been filed incorrectly. This is a huge mistake in police work; if something is filed incorrectly, it can throw the case. This means that the case can no longer be investigated because the evidence is incorrect.