It’s attractive enough to have lured private equity money:
Three years ago, the I.R.S. began offering bigger rewards — 15 percent to 30 percent of whatever money the government recovered — in a move that has turbocharged the agency’s whistle-blower program. …
Among the lawyers, hedge funds and investors who may provide the financing for class-action lawsuits and whistle-blower cases against government contractors, the reinvigorated I.R.S. program has attracted attention.