What we have to ask is this: what can we morally expect of and allow to people whom we deploy to fulfill this or that social role :police officer, school teacher, physician? This may sometimes lead to difficult social decisions - e.g. should police be permitted to illegally import drugs as part of a sting operation? In the end, I think "common - that is, critical - morality" should determine the limits of the police role.

Whistleblowing constitutes a nice test case for the evaluation of loyalty. Loyalty also appears at the intersection of many major philosophical debates: general ones such as those between consequentialism and deontology, reason and feeling, virtue and principle, as well as more specific ones such as nationalism and patriotism, morality and obedience, particularism and universalism.

It is odd that a value/virtue that plays such a central role in dramatic literature has played such a small role in philosophical writing. There are probably a number of reasons, but I think that a predilection for a certain kind of individualism is a major one. Others might include the fashionability of consequentialism, the idea that loyalty has more to do with sentiment than reason, as well as its proneness to corruption. The revival of interest in virtue/character as distinct from rules/principles has also created space for a renewed, if hesitant, interest in loyalty.

As a matter of ethics - our broader social life needs to be constrained by law and other devices - resolving at the societal level matters that should not be left for individual ethical negotiation. What is important - in the end - is that we are enabled to flourish in ways that acknowledge our dignity.

In separating out, say, legal and moral requirements, I tend to work with paradigms rather than strict divisions - eg, paradigmatically, legal requirements are jurisdictionally bound whereas ethical requirements are aspirationally universal; ethical requirements focus especially on intentions whereas legal requirements focus primarily on conduct; ethical requirements take priority over legal requirements; and so on.

What we have to ask is this: what can we morally expect of and allow to people whom we deploy to fulfill this or that social role :police officer, school teacher, physician? This may sometimes lead to difficult social decisions - e.g. should police be permitted to illegally import drugs as part of a sting operation? In the end, I think "common - that is, critical - morality" should determine the limits of the police role.

Police have both extra constraints and extra permissions - on the one hand, they can't dodge involvement in social disorder as the rest of us can and they may be required to conduct themselves privately in a way that does not undermine their public authority; on the other hand, they have permission to engage in deceptions, invasions of privacy and uses of force that are forbidden to the rest of us. But this does not put them beyond common morality.