"In Wisconsin, for instance, the risk-score formula was developed by a private company and has never been publicly disclosed because it is considered proprietar

"In Wisconsin, for instance, the risk-score formula was developed by a private company and has never been publicly disclosed because it is considered proprietary. This secrecy has made it difficult for lawyers to challenge a result." Shouldn't that on the contrary make it extremely easy for lawyers to argue that the score evidence should be thrown out?