Secret Service detail of DJT has the legal authority to arrest Bragg under many theories..
DJT's detail could arrest Bragg. I suspect this might be why Bragg's office won't answer questions about fed funds used in this.
Fun thought: PLOT TWIST: DJT brought in for arrest but it is Bragg who his detail arrests for criminal acts associated with false arrest
https://www.law.cornell.edu/uscode/text/18/3056#:~:text=98%E2%80%93587%20amended%20section%20generally,conduct%20investigations%20and%20make%20arrests