What must be done to opaque lifters in order to make comparisons with inked impressions?

To effectively make comparisons between opaque lifters and inked impressions, it is crucial to reverse the opaque lifters. This process allows for the latent print or impression to be visualized in a way that matches the orientation and position of the inked impressions. Reversing the lifters can ensure that any ridge details captured by the lifter are aligned appropriately with the known prints, allowing for accurate analysis and comparison.

In the context of latent print examination, if lifters remain in their original orientation, it may lead to confusion or misinterpretation of the print details. The ability to consistently examine prints side by side with inked impressions enhances the capability for thorough comparison and matching, which is critical in forensic investigations.

The other options do have relevance in different contexts, but they do not directly address the need for comparison with inked impressions in the same way reversing the opaque lifters does.