Chris Farrell, director of Investigations and Research at Judicial Watch. (YouTube)

Commenting on Special Counsel Robert Mueller's investigation of alleged Russia-Trump campaign collusion, Judicial Watch's Director of Investigations Chris Farrell said much of the so-called evidence collected by Mueller is tainted and that if Mueller had "any integrity," he would shut the investigation down.

Farrell added that the entire case "is collapsing on itself in slow-motion."

Farrell made his remarks on the March 21 edition of Lou Dobbs Tonight. In discussing the case, Farrell noted that the FBI's chief counterintelligence officer, Peter Strzok, had to be removed from Mueller's team last July because of numerous anti-Trump text messages he exchanged with his mistress, Lisa Page, a senior FBI attorney.

Strzok was involved in several high-profile investigations, including the Hillary Clinton email server case and, under Mueller, reportedly the Paul Manafort case and the Michael Flynn matter. His anti-Trump bias and that of other FBI officials is being investigated by the Justice Department's inspector general. The IG's report is expected in May.

In addition, the FBI Deputy Director Andrew McCabe was fired at the recommendation of his colleagues in the Office of Professional Responsibility, and now it has been disclosed that McCabe initiated an investigation of Attorney General Jeff Sessions for alleged Russia collusion reportedly after Sessions had already been cleared.

FBI counterintelligence agent Peter Strzok and his mistress, FBI attorney Lisa Page. (YouTube)

Also, McCabe signed the application for the FISA warrant to spy on Trump adviser Carter Page, based upon information from a dossier on Trump that was ultimately paid for by the Clinton campaign and the Democratic National Committee. According to Rep. Jim Jordan (R-Ohio), Strzok apparently was the agent who took the phony dossier to the FISA court to help get the warrants for surveillance.

In short, some of the sources and methods used to gather evidence in the alleged Russia collusion case apparently are tainted.

As Farrell told Dobbs, “The situation with Mueller is that every single thing that’s come up or derived from all of this 'Russia, Russia' nonsense is tainted. It is 'the fruit of the poisonous tree,' which is an old legal term going back 80 years but still valid today, wherein any evidence obtained unlawfully or through any sort of illegal act on behalf of law enforcement or prosecutors can’t be used and anything derived from that can’t be used as evidence."

Special Counsel Robert Mueller, a former director of the FBI. (YouTube)

Farrell then explained that Strzok had his hand in many aspects of Mueller's investigation and this is legally problematic.

“You can’t take bad evidence and pretend you got it some other way, and anything that derives from that is equally inadmissible," said Farrell. "So, he’s got garbage," he said, in reference to Mueller.

"They should really move to shut the thing down," said Farrell. "If Mueller had any integrity, any conscience, based on his ethical obligation, he would shut it down, resign, terminate the whole thing – because it is collapsing on itself in slow-motion. The problem is it’s too slow.”