Are security guards actually not allowed to do anything?
<p>Consider a trespassing case, not a robbery or any serious felony which would allow citizens arrest anyway.</p>
<p>Are security guards actually allowed to use force? Especially if it's a discriminatory or illogical reason? The law says any &quot;reasonably appointed&quot; person can issue a trespassing warning, but it never says what that means, and there doesnt seem to be any law, besides precedent and interpretation, that gives security guards any authority whatsoever.</p>

<p>The legal division is between law enforcement officers (or some similar expression, defined by law), and everybody else. A security guard falls in the category &quot;everybody else&quot;, so like everybody else, they can use force to defend themselves from an attempted murder. <a href="https://www.leg.state.nv.us/NRS/NRS-648.html#NRS648Sec016" rel="nofollow noreferrer">Nevada law</a> simply defines &quot;security guard&quot; as &quot;a person employed as a watchman, guard, security consultant, patrol officer or in any other similar position&quot;. The main reason for mentioning them at all is to exclude them from license-related laws applicable to private investigators and security consultants. <a href="https://www.leg.state.nv.us/nrs/nrs-289.html#NRS289Sec150" rel="nofollow noreferrer">This section of Nevada law</a> defines those who have &quot;powers of peace officers&quot; – it doesn't include security guards or private investigators. One important distinction, stated <a href="https://www.leg.state.nv.us/nrs/nrs-171.html#NRS171Sec1455" rel="nofollow noreferrer">here</a>, is that</p>
<blockquote>
<p>If necessary to prevent escape, an officer may, after giving a
warning, if feasible, use deadly force to effect the arrest of a
person only if there is probable cause to believe that the person:
1.  Has committed a felony which involves the infliction or threat of serious bodily harm or the use of deadly force; or 2.  Poses a threat
of serious bodily harm to the officer or to others.</p>
</blockquote>
<p>An ordinary person cannot do this, instead that can <a href="https://www.leg.state.nv.us/nrs/nrs-200.html#NRS200Sec120" rel="nofollow noreferrer">use deadly force in self-defense</a>, and not to effect an arrest.</p>
<p>The law does not allow <em>anybody</em>, including officers, to do otherwise-prohibited things unreasonably. The law does allow <em>everybody</em> to discriminate, except in specific cases such as you cannot discriminate based on race when hiring or beating a person (in the later case, it's called a &quot;hate crime&quot;). Questions about trespassing generally arise in connection with a rowdy person in a public place such as a bar, which are deemed to be &quot;public accommodations&quot;. You are not allowed to discriminate on the basis of race in access to public accommodations, therefore you cannot eject a person for being the wrong race. However, your home is not a public accommodation, so you are not required to be racially-neutral w.r.t. your home. There is no LEO exception with respect to non-discrimination requirements.; there is no ordinary-person exception either. As for <a href="https://www.leg.state.nv.us/nrs/NRS-207.html#NRS207Sec200" rel="nofollow noreferrer">trespass warnings</a>, the law says</p>
<blockquote>
<p>A sufficient warning against trespassing, within the meaning of this
section, is given by any of the following methods:...By the owner or
occupant of the land or building making an oral or written demand to
any guest to vacate the land or building.</p>
</blockquote>

nevada