Short Answer: Absolutely!
Regarding this questions include but are not limited to: : ADP/ADRP/ 6-22, ATP 6-22.1, FM 7-22.7, and the Military Manual for Courts-Martial/UCMJ.
Definition of Leader with Regard to Counseling Session
As defined by ADP 6-22 Glossary 1: Army leader– Anyone who by virtue of assumed role or assigned responsibility inspires and influences people to accomplish organizational goals. Army leaders motivate people both inside and outside the chain of command to pursue actions, focus thinking and shape decisions for the greater good of the organization. – Glossary 1 ADP 6-22
Yes, any leader within or external to the chain can conduct a counseling session with a Soldier. However when you are not in the Soldier’s direct Chain of Command for example- Squadleader, PLT LDR, CO CDR, BN CDR, BDE CDR, DIV CDR or NCO Support Channel: Squad Leader, PLT SGT, 1SG, CSM, etc. The issue can become emotional.