I discovered that decades of investigation have failed to turn up any evidence that homework is beneficial for students in elementary school.

我发现，数十年的调查并没有发现任何证据表明，家庭作业对小学生是有益的。

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On top of this, often after years of investigation, they also weigh the evidence, and decide whether to send a suspect for trial.

除此之外，往往在长时间的调查后，他们也权衡证据取舍，并决定是否将嫌疑人移送审判。

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A local police investigation claimed no evidence of foul play, but Internet users were quick to scorn that.

当地警方的调查报告宣称并不存在蓄意谋杀的证据，但网民立刻对此表示蔑视。

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"This will be the subject of a full investigation. If there is any evidence that any government agency could have or should have done better, we will certainly be taking all relevant action to address that,"

VOA: standard.2009.03.13

These searches are the product of evidence that has been gathered in the investigation since the attempted Times Square bombing and do not relate to any known immediate threat to the public or active plot against the United States."

VOA: standard.2010.05.14

While he refused to comment specifically on the findings of any report, he answered generally that the damning evidence of an investigation can look very different upon closer inspection and when it comes up against the counter-evidence produced by a skilled defense in a criminal trial.

NEWYORKER: A Dirty Business

The evidence of the Armstrong investigation suggests that many other cyclists were habitual dopers, anyway.

CNN: Opinion: It's time to allow doping in sport

The commission starts the second part of its report on Thursday when it will call for evidence as part of its investigation into constitutional issues.

BBC: David Melding AM