But it is often impossible to obtain enough admissible evidence to obtain a conviction, the government argues.
Attempts to admit such evidence raise a number of questions, including how to authenticate ESI as admissible.
However, many securities attorneys hoped the evidence would be admissible in arbitration or court as statements of fact.
Mr Clarke admitted that at the time of Mr Barot's arrest police did not have any evidence admissible in court.
The reforms - which also allow hearsay evidence to be admissible in court - come under the new Criminal Justice act.
They first had to consider whether McLaren's appeal was admissible, as Formula One rules do not allow teams to appeal against drive-through penalties.
So the need is to reform that and make confessions legally admissible evidence by videotaping them or recording them in front of magistrates.
Lawyers say results from MEDAL probably won't be admissible in Vioxx trials, and even if they show no risk, that won't necessarily help Merck.
The hard drive was on a computer in the house that was not password protected, which made the resultant data admissible, Mr. Hennenhoefer says.
Illinois passed a hearsay law in 2008 tailored to Drew Peterson's case, dubbed "Drew's Law, " which assisted in making some of the evidence admissible.
He contested the search and won at the lower court level, meaning that all of the evidence would be suppressed and not admissible against him.
In December, Director of Public Prosecutions Keir Starmer said no new charges would be brought in the case, owing to a lack of admissible evidence.
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The judge will rule on what evidence is admissible at trial.
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"This (fighting) evidence is admissible in support of Mr. Zimmerman's self-defense claim regarding the abilities and capacity of Trayvon Martin as an experienced fighter, " Zimmerman's attorneys wrote.
Italy argued for its part that such claims were admissible as the abuses committed by German troops amounted to "international crimes" which had precedence over state immunity.
However, Omar Sheikh did not make that statement under oath, later retracting it, and defence lawyers say it should not be admissible in the hearings at all.
Mr Khan's case coincides with the release of an independent review which argues that intercept evidence should be admissible in court in cases where national security is involved.
"The findings should be admissible (as fact) and the scope of the investigation should have been broader, " says Phil Aidikoff of Aidikoff and Uhl in Beverley Hills, Calif.
Lord Menzies said that his arrest for contravening the Police (Scotland) Act was not wrongful or unjustified and items recovered in a search were properly admissible as evidence.
In court arguments, Cisneros's attorneys, Brendan Sullivan and Barry Simon, argued the tapes were not admissible because they were made in an illegal attempt to extort money from Cisneros.
The temptation to over-issue, in certain financial emergencies, is so strong, that nothing is admissible which can tend, in however slight a degree, to weaken the barriers that restrain it.
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Unless the authorities in Switzerland are willing to change the way they respond to such requests, the Italians may be unable to obtain admissible evidence from, for instance, Swiss banks.
It will ultimately be up to a court to decide which, if any, of the statements Mr. Tsarnaev made before he got the warning could be admissible evidence for the prosecution.
Mr. Anand, the lawyer representing Ram Singh, said he didn't dispute that his client made a statement to police but said it wasn't, under Indian law, admissible as evidence in court.
Without these rights granted to all defendants pursuant to Miranda, anything this suspect might say to interrogators before being advised of these rights would still be admissible in a court of law.
Liberal Democrat home affairs spokesman Chris Huhne said the court was rightly concerned about the use of evidence gained under torture in Jordan, which would not be admissible in a British court.
Before the appeal can be heard, the court will decide whether it is even admissible as there is some debate about whether the rules allow for teams to appeal against a time penalty.
But text messages between Huhne and his son Peter, sent in May 2011 and declared admissible in court by Mr Justice Sweeney, revealed Peter put pressure on Huhne to "accept responsibility" for the offence.
We think there has been a non-admissible reason.
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EAGLE, Colorado (CNN) -- The judge in the Kobe Bryant case ruled Wednesday that the medical and psychological history of the woman who accused the basketball star of rape will not be admissible at trial.
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