Spanish to English Law/Patents Law (general) Human-rights defense text from Colombia

Estrategias de reducción de libre ejercicio de la defensa de derechos humanos y de desigualdad de armas, tales como interdicción de encargarse de ciertos casos, violación de la confidencialidad de la relación abogado­defendido, limitaciones de acceso a los expedientes o a los lugares de detención, ***IMPEDIMENTOS PROBATORIOS***, vistas sin levantar el secreto sumarial, etc

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Basically, these human-rights defense lawyers are being given a very hard time, being murdered, kidnapped, exiled... and their job is being made as hard as possible by the authorities.

I've found this same term in another text, where it appears to be some kind of document (perhaps some sort of "documentary proof"?):

Que es constante en el derecho moderno el rasgo esencial que los ****impedimentos probatorios****, signados por un mandato administrativo de mera conveniencia del Estado, traducen un demérito imposible de consentir en la evolución social de la democracia.

This doesn't seem to tally with the impedimentos probatorios in my text, as far as I can see.

Otherwise, it doesn't appear to be a commonly used term.

Any suggestions would be most welcome - many thanks!