The BBC's Milton Nkosi in Johannesburg says Mr Frederiksen was arrested last week following a tip-off.
He says that he receives a tip about questionable practices every week from SIAS members or others.
On a more basic level, how long does it take the SEC to process a tip?
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The actions by Gupta and Rajaratnam were "entirely consistent with a tip, " the prosecutor said.
He was living with a friend when, acting on a tip-off, the police arrested him.
So did someone in Ohio give Splash a tip that Anthony was in town?
The fact that the entire operation was the result of a tip should make us nervous.
He was picked up at Brisbane airport on 2 July after a tip-off from British police.
Their only hope is that someone comes forward with a tip after all these years.
Fareeha told Army chiefs that these boys were just a tip of the iceberg.
Hence the conclusion that snoring is also a tip-off to coronary artery disease, or CAD.
Police uncovered 71, 600 images on his laptop and camera when they confronted him following a tip-off.
Following a tip-off, SSPCA inspectors found a scene of unparalleled carnage on his land.
But the police were waiting for him after receiving a tip-off, Mr Mdunge said.
Here's a tip: not following these instructions to the letter will seriously hurt your chances.
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Police first arrested them over the weekend, apparently after a tip-off, he says.
Following a tip-off, police also found a number of weapons, along with other military equipment and passports.
They say it was a reward for a tip-off about a separate criminal investigation he was facing.
It started in 2002, he says, when he got a tip about a huge pork barrel project.
It looks like a tip to the other staff who might be a part of a tip pool.
Mr Maher, 56, originally from Essex, was arrested in Ozark, Missouri, after police received a tip-off in February.
Authorities said the undercover operation was started as the result of a tip from a state police informant.
And at their request, I've even weighed in with a tip or two for keeping their men happy.
One is by contacting the body, like by a tip of an oral thermometer touching under the tongue.
Random inspections are conducted by secret shoppers, he said, and violators can be reported via a tip line.
In 2009, a tip to the task force broke up a ring that was planning to bomb the subways.
Noah scored on a tip-in that made it 87-85 with four minutes left.
Sure enough, one of his golfing friends gave him a tip that led to a job at a startup.
Sometimes a client would give them a tip, between twenty and sixty dollars.
On the other hand, servers can obviously impact the size of a tip.
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