Justify the kinds of situation when confidentiality protocols must be breached

Well, usually (I say usually) many laws make the disclosure of confidential necessary. Often a court may rule or require that confidential information must be provided in order to proceed in a case. For example, if during a murder case, confidential medical records could be used (within the confines of the court) to prove a motive or could be used to identify a killer. In my home country (Australia) I am not sure about this but in the UK if this information involves a child's wellbeing and the pros outweigh the cons then it can be release/used however you will have to be prepared to justify your actions.

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

producing or giving rise torelating to or engaged in the production of goods, crops, or other commodities.

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.

Sometimes but itt depends, their is a lot if drugs on campus too so you really can't just say that