Detailed text transcripts for TV channel - CNN - 20170804:16:30:00
Cnn legalen lift michael zeldin joins us, a former prosecutor. what does it mean when a special counsel goes to having the grand jury help in the investigation? what does that tell us? >> you normally start the investigation with an informal process of interviewing witnesses. then you cross over to the formal process of convening a grand jury. the grand jury can then subpoena documents and take testimony of people under oath. once it's ga-- its gathered tha information, a decision to indict or not. that's the full job of the grand jury. what we see from mueller, uptick from informal to formal....