Joseph...
This is what was used when I was down in Miami by HIDTA. I don't know if it's the same nationwide, but a little monitoring might reveal some more.
HIDTA NET 1 - 156.015
NIDTA NET 2 - 156.030
HIDTA NET 3 - 155.910
HIDTA TAC 4 - 155.115
HIDTA TAC 5 - 155.925
All used PL 103.5. The nets are repeaters, tacs were simplex. The nets were actually licensed to Miami-Dade County.