Section 1384 of title 18 is about prostitution near a military base. Does not even make sense in this context? Maybe a member of the military that hires a prostitute can’t testify against them?
https://www.law.cornell.edu/uscode/text/18/1384
Seems Schiff is trying some CYA. Doesn’t want any military personnel to be able to rat about him and others in the prostitution areas.