An in-depth investigation was out of the question because of severely constrained time due to an upcoming election.

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On Tuesday the regulators ruled an in-depth investigation was needed as they believed there was "no obvious market failure" that needed to be addressed.

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Since then, 50 attorneys generals have launched a an in-depth investigation into the way BofA and other lenders like Wells Fargo and JPMorgan Chase handled foreclosures.

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The Daily Telegraph's claims led to "an in-depth internal investigation" at WJEC.

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