Indeed. More or less the DCRI would be equivalent to the FBI and the DGSE would be equivalent to a kind of CIA/NSA even if it is not completely true given that

Indeed. More or less the DCRI would be equivalent to the FBI and the DGSE would be equivalent to a kind of CIA/NSA even if it is not completely true given that CIA is a civil agency. But what's important is that DCRI's competency is domestic intelligence and DGSE is for foreign intelligence.