Peter Strzok worked 24 years for the CIA. His job title was Chief of their Counterespionage Group.
The FBI never had such a unit.
Strzok (pronounced Strock, rhymes with sock) led the FBI's investigation into Hillary Clinton. She used personal email for classified government business while she was Secretary of State.
The FBI's investigation into Russian interference in the election of Donald J. Trump as President was also led by Strzok.
A joint CIA/FBI position was created by Congress in 1996. Strzok was "a senior FBI official" by being the CIA’s Chief of Counterespionage.
Please refer to Scribd documents Page Four in the next link.
Strzok's signature and job title is on a letter he sent to Gregory Starr on January 20th, 2016. It was sent on FBI stationery.
The official job description of Strzok's joint position included "full-time coordination with the FBI ... including weekly meetings with senior FBI officials in the FBI's National Security Division".
The source is a joint press release dated Nov. 18th, 1996 linked here:
Lisa Page of the FBI was assigned to work with Strzok.
Strzok was still working for the CIA on June 9th, 2017, according to a public information release of information here:
The "coin" Strzok was referring to is pictured at the top of this post. They sell for ten dollars on the internet.
James Kallstrom, former FBI Assistant Director, discusses Peter Strzok on national television in the above video. Please fast forward to 50 seconds.
Please fast forward to the third minute of this video. Thank you.
Please begin reading this CIA-FBI Press Release dated Nov. 18th, 1996 at Paragraph Nine: