Officers learned of the planned drug transactions by monitoring the phone calls Crawford made and received while in Eastern Regional Jail, Bohrer said.
Bohrer and other deputies were awaiting her arrival.
After Crawford exited the bathroom, a female Magistrate Court employee searched her and found pills, cigarettes and a substance that appeared to be marijuana hidden in her genital area, Bohrer said.
Drugs also were left in the men's bathroom, but those were not picked up by an inmate and instead were seized by police, Bohrer said.
Crawford and her boyfriend, Shawn Jason Cole, 29, were brought to the courthouse so a magistrate could ascertain whether they still intended to fight extradition. In court paperwork filled out on Jan. 19, both indicted they were not going to return voluntarily to Louisiana to face charges of second-degree murder.
Police allege Crawford and Cole killed Crawford's grandfather - 80-year-old Henry Ramirez - on Jan. 6 in Louisiana and drove his body to Berkeley County in the back of a Budget rental truck.
Ramirez's body was found buried in a shallow grave on Jan. 11. The body, which was wrapped in blankets and garbage bags, was found buried in a secluded spot off Jenkins Road, which is a gravel road between the communities of Gerrardstown and Shanghai.
Both Crawford and Cole told Magistrate Joan Bragg that they still do not want to return to Louisiana.
Assistant Prosecutor Joshua Henline asked for 60-day extensions on the fugitive warrants so he can obtain a governor's warrant demanding Cole and Crawford return to Louisiana. Bragg granted the extensions.
Cole and Crawford are being held without bail in Eastern Regional Jail.