imported post
per CPC
a private person(non LEO) can make an arrest
834. An arrest is taking a person into custody, in a case and in
the manner authorized by law. An arrest may be made by a peace
officer or by a private person.
835. An arrest is made by an actual restraint of the person, or by
submission to the custody of an officer. The person arrested may be
subjected to such restraint as is reasonable for his arrest and
detention.
837. A private person may arrest another:
1. For a public offense committed or attempted in his presence.
2. When the person arrested has committed a felony, although not
in his presence.
3. When a felony has been in fact committed, and he has reasonable
cause for believing the person arrested to have committed it.
839. Any person making an arrest may orally summon as many persons
as he deems necessary to aid him therein.
841. The person making the arrest must inform the person to be
arrested of the intention to arrest him, of the cause of the arrest,
and the authority to make it, except when the person making the
arrest has reasonable cause to believe that the person to be arrested
is actually engaged in the commission of or an attempt to commit an
offense, or the person to be arrested is pursued immediately after
its commission, or after an escape.
The person making the arrest must, on request of the person he is
arresting, inform the latter of the offense for which he is being
arrested.
846. Any person making an arrest may take from the person arrested
all offensive weapons which he may have about his person, and must
deliver them to the magistrate before whom he is taken.