Translation of "to preclude" into Spanish

I've got a guy at Quantico who eyeballed them himself to preclude computer error.

Tengo a un tipo en Quantico que las revisó él mismo para descartar un error del ordenador.

However, the fact that objectives are largely attained does not suffice to preclude the necessity of a measure.

Pero un amplio logro de los objetivos no es suficiente para excluir la necesidad.