Final answer:
The logical first step for Perry Franks investigating a check forging operation is to examine the forged checks for fingerprints to identify individuals who handled the checks. The correct option is (d).
Step-by-step explanation:
When Perry Franks is investigating a check forging operation, the logical first step in the investigation would be to examine the forged checks for fingerprints.
This is because it is a direct piece of evidence that could quickly lead to identifying individuals who handled the checks.
Other steps like interviewing the person who accepted the check, analyzing bank records, and collecting handwriting samples are also important, but they often require more context and information that can be gathered after initial physical evidence has been assessed.
Moreover, the immediate examination of the checks may prevent contamination of evidence which is crucial in a criminal investigation.