There was an officer involved shooting incident in Florence County and then Sheriff Kenny Boone had a feud going with SLED so that, rather than SLED investigating, Boone requested the Richland County SO to come to Florence to investigate.
Something similar in the Spartanburg area?
Decades ago, it was a common practice in S.C. for newly hired police officers to be "seconded" for a short time to another agency for undercover work, such as drug buys, since the officers were not locally known.