If you follow the link to the article[0], it quotes the rule this was done under:
Offenders in the custody or supervision of the Department are not permitted access to the Internet, nor are they permitted to obtain access to the Internet through third parties.
It also notes the sentence in this instance was overturned once the EFF and ACLU got involved.
Offenders in the custody or supervision of the Department are not permitted access to the Internet, nor are they permitted to obtain access to the Internet through third parties.
It also notes the sentence in this instance was overturned once the EFF and ACLU got involved.
[0] https://www.eff.org/deeplinks/2014/07/new-mexico-inmate-face...