Is this conduct consistent with the norms of justice?
Personally, It’s not consistent with the norms of justice. Even though, all parties are forced to be under the censorship policy, but, it’s not fair for the one who doesn’t intend to use “improper pictures” to harm other people because he/she may use this kind of pictures in his/her works (in many universities, there are so many researches related to “improper materials”). So, if everyone is forced to be under this policy some of them cannot continue their works while they are staying on campus.