BBM
Agent Smith answered that question when he testified.
FDLE Agent Travis Smith had portrayed Croslin as the "bigger fish" who doesn't get offered a deal by the state.
"She's been moving an enormous amount of prescription pills in our community," said Smith. "Misty Croslin initiated all the drug transactions."
IMO, as LE believes that Misty is the "key" in Haleigh's disappearance, no way is Agent Smith going to provide any type of testimony beneficial to Misty. They wanted to apply pressure to Misty to get her to crack with Haleigh. No way was he going to testify to Misty's real crime....being a go-between who when someone asked if she could get them some drugs, she did the exchange between the person with the money and the person who had the drugs. Similar to having furniture delivered to your house. The person who delivers the furniture is nothing more than a go-between.
IMO, how over-exaggerated his testimony was to get Misty as long of a sentence as possible to provide pressure for the Haleigh investigation is evidenced by the bolded comment above.
My regulary legal monthly prescriptions of pain medications are more than she was "moving." Obviously, I'm not selling my prescriptions. However, just for context, anyone with long term chronic pain has more pain pills than the "enormous amount of prescription pills" she was moving.