What does it indicate when something is marked as 'against rules/regulations'?

When something is marked as 'against rules/regulations', it indicates that it is not permitted by established protocols. This means that there are specific guidelines or laws in place that define acceptable behavior or practices, and any action or situation deemed 'against rules/regulations' clearly falls outside of those defined boundaries. Such markings serve as a warning or a designation that certain actions could lead to disciplinary measures or hold legal consequences, emphasizing the importance of adherence to the outlined rules or standards within a given context, such as law enforcement practices.

In this context, the other choices would represent different situations. For instance, 'sanctioned under law' would imply that the action is allowed or endorsed by legal standards. 'Considered a best practice' suggests that it is an endorsed method within a field, while 'under evaluation for approval' indicates that the subject is currently being assessed to determine its acceptability, which is a different concept altogether.