Are on-duty officers allowed to lie about their identity?
<p>This is a follow-up to <a href="https://law.stackexchange.com/questions/81754/is-it-legal-to-release-the-identities-of-investigators-of-an-active-case/81758#81758">this question</a>. In it, I talk about how I see it as problematic that the identities of LEOs investigating an active case can be publicized. If that case concerns a serial killer, or perhaps members of organized crime, it seems like the investigators could become the target of assassination, threats, blackmail and bribery.</p>
<p>According to <a href="https://www.lawfareblog.com/can-law-enforcement-officers-refuse-identify-themselves" rel="nofollow noreferrer">this article</a>, LEOs are not mandated by federal or state law to disclose their identity, though this may be mandated at a municipal level. Given I'm writing a fictive work set in NYC, I'm specifically asking the following questions, in relation to that jurisdiction in particular:</p>
<ol>
<li>Are on-duty officers required to identify themselves in NYC?</li>
<li>Are on-duty officers allowed to lie about their identity in NYC?</li>
<li>Are on-duty officers allowed to show a fake badge in NYC?</li>
</ol>
<p>If the answer to 1. and 2. is 'yes', but the answer to 3. is 'no', perhaps they're allowed to swiftly flash their badges whilst stating a false identity?</p>

<h2>No</h2>
<p>At least, not in all circumstances.</p>
<p>Obviously, a uniformed police officer is automatically identifiable: and usually displays a precinct number, badge number and name (depending on the uniform). A plainclothes officer, not so much.</p>
<p>In most circumstances, a police officer is not required to identify themselves as such. This includes normal interactions, like buying a sandwich for lunch and actions that might be thought of as &quot;police work&quot;: investigation, surveillance, and undercover work. However, when they are executing a &quot;police power&quot;, like entering premises subject to a warrant or probable cause, making an arrest, or issuing an order they need to identify themselves as a police officer - not doing so can lead to confusion: always a bad thing where firearms might be involved.</p>
<p>As to lying, a police officer has no general duty to be truthful except in very narrow circumstances. They must tell you if you are under arrest if you ask and they must read you your rights if they place you under arrest. Aside from that, they can lie their asses off.</p>
<p>A police officer could use a fake badge if the circumstances warranted it. For example, if they were investigating fellow police officers in an undercover role.</p>

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