QuoteSo....
Inmate passes polygraph in murder case that brought down congressman
Inmate no longer considered suspect
Seven years later inmate is fingered
Media lies, reports polygraph administered seven years prior was inconclusive
For seven years the family of the victim has suffered
Polygraphs suck yet must be protected to sustain the lie
Ummm....FAIL

Quote from: George_Maschke on May 23, 2015, 03:47 AMMcClatchy DC reports that Ingmar Guandique is to receive a new trial in connection with the death of Chandra Levy:
http://www.mcclatchydc.com/2015/05/22/267597/as-key-hearing-on-chandra-levy.html

Quotehttps://www.washingtonpost.com/local/public-safety/2016/07/29/7bccd898-55a9-11e6-bbf5-957ad17b4385_story.html
Secret recordings emerged and the Chandra Levy case rapidly unraveled
By Keith L. Alexander and Lynh Bui July 29 at 8:56 PM
This week, prosecutors and defense attorneys were set to travel to a California meeting, preparing for the retrial of the man charged with killing Washington intern Chandra Levy in 2001. But that travel plan changed abruptly and the murder case crumbled.
Lawyers on both sides had learned about recent secretly recorded conversations with the man who was to have been the key witness against Ingmar Guandique, Levy's alleged killer. On Thursday, prosecutors dropped all charges against Guandique, telling defense attorneys that new information had left them unable to prove their case.
New details about how the case unraveled emerged Friday from defense attorneys, who said the case was closed shortly after prosecutors received recordings from a Maryland woman of conversations she had with star witness and jailhouse informant Armando Morales.
The woman told both sides that Morales said in the recordings that he lied when he testified that Guandique had told him about killing Levy, according to the defense attorneys from the District's Public Defender's Service.
The defense team never played the recordings because they believed that they had been made illegally under Maryland law, said Laura Hankins, general counsel for the Public Defender's Service.
But after receiving the tapes, prosecutors dropped the charges, citing "new information the government received within the past week."
Signs that the prosecution's case was beginning to unravel emerged July 21 during a routine hearing in D.C. Superior Court.
At that hearing — one of dozens leading up to the retrial — one of the prosecutors told the judge about a witness who contacted them and told them that she had "information" about Morales.
By the weekend, the woman, Babs Proller, had told prosecutors and defense attorneys about her secret recordings of Morales. Proller, a part-time actress, said she struck up an acquaintance with Morales, who had recently been released from prison, in early July when she was living in a Maryland hotel.
"Ms. Proller indicated to us that Mr. Morales had told her that he had lied when he testified against Mr. Guandique," said one of Guandique's attorneys, Katerina Semyonova.
Proller made the same assertion in interviews with The Washington Post.
...
QuoteThe Washington Post reported in Sunday's editions that police were concerned that the polygraph test may be unreliable because the FBI administered it through an interpreter. Chief Ramsey dismissed that concern, saying he was satisfied with the use of the FBI-qualified interpreter. He said the same interpreter was used during the polygraphs of Guandique and the other inmate.
QuoteOf course you should mention that Levy's Attorney refused a second polygraph in Guandiques Native Language within two months of his original polygraph after the results were called inconclusive due to language barrier problems. If the suspect test was inconclusive then so was the informant test for the same reasons
QuoteGuandique, a day laborer, came under the scrutiny of investigators months after Levy disappeared, but a series of delays and missteps allowed the case to languish. Nine months before Levy's remains were found in Rock Creek Park, a D.C. inmate came forward to say that Guandique had confessed to the crime while they were in jail, but the inmate's account was dismissed after he failed an FBI-administered polygraph exam. A polygraph test taken by Guandique before he was sentenced in the other two attacks was deemed "inconclusive." Neither exam was administered by a bilingual polygrapher, even though Guandique and the other inmate speak little or no English. Polygraph results can be skewed if there are translation problems, experts say.
QuoteDetectives in the Chandra Levy murder case are focusing on a man convicted of assaulting two women jogging in Rock Creek Park last year -- a suspect who was initially discounted after he passed a polygraph test that investigators now believe was flawed.
Ingmar A. Guandique, 21, has been in prison for the assaults on the joggers since July 2001, two months after Levy disappeared. After her remains were found in the park May 22, some investigators reexamining his case were struck by the similarities in the three crime scenes, law enforcement sources said.
Investigators then discovered that a Spanish-speaking interpreter instead of a bilingual polygraph technician was used in administering Guandique's polygraph, sources said. Relying on an interpreter, according to legal experts, can skew the results of the test because the questions are filtered through and possibly altered by the interpreter.
...
A Tip Discounted
D.C. police first spoke to Guandique about the Levy case in the summer of 2001 after U.S. Park Police alerted them to his arrest in the jogger assaults, according to court records. But law enforcement sources said they found nothing to indicate he was involved in her disappearance, especially since, at the time, they weren't aware that her body was in the park.
After Guandique's arrest, an inmate at the D.C. jail told authorities that Guandique had confided in him that he stabbed Levy and left her body in the park, law enforcement sources said. The inmate didn't try to trade the information for a lighter sentence, saying he came forward because he felt bad for the Levy family.
In September 2001, the inmate failed a polygraph test, also administered through an interpreter. Guandique, who denied involvement in the Levy case, passed, the sources said, and authorities felt comfortable that he was not their man.
When Levy's body was found eight months later, Guandique's name surfaced as someone who had attacked other women in the park. High-ranking police, knowing that their detectives had discounted him because of the polygraph, played him down as a suspect, with Ramsey scolding, "The press is making too big a deal of it."
Ramsey's then-deputy, Terrance R. Gainer, was more blunt: "He wasn't our suspect then. He's not our suspect now."
Ramsey last week defended the use of the interpreter. "When you've got language issues, it's not unusual to use a translator," he said.
But Billy Franklin, director of the Virginia School of Polygraph in Norfolk, said he prefers not to use interpreters because if they don't pose the questions correctly, the answers can be wrong.
"In such an important case, they should have used a bilingual examiner if possible," he said.
James Starrs, professor of law and forensic science at George Washington University, contends that because lie detector tests can be unreliable, they shouldn't always determine the course of an investigation.
"Simply because someone passes the test, they shouldn't be written off, absolutely not," he said.