This recently introduced legislation proposes to ensure some level of transparency in the specific context of algorithms used to process evidence used in criminal proceedings:

H.R.4368 - Justice in Forensic Algorithms Act of 2019

To prohibit the use of trade secrets privileges to prevent defense access to evidence in criminal proceedings, provide for the establishment of Computational Forensic Algorithm Standards, and for other purposes.

https://www.congress.gov/bill/116th-congress/house-bill/4368...