types:
bombero
a member of a fire department who tries to extinguish fires
adoptador,
adoptante
a person who acts as parent and guardian for a child in place of the child's natural parents but without legally adopting the child
guarda
a person who keeps watch over something or someone
canguro
a person engaged to care for children when the parents are not home
gorila
a person whose duty is to throw troublemakers out of a bar or public meeting
velador,
vigilante
a custodian who is hired to take care of something (property or a person)
jefe de policía
a lawman with less authority and jurisdiction than a sheriff
conservador
the custodian of a collection (as a museum or library)
patrulla
a policeman who patrols a given region
madre adoptiva
a woman who is a foster parent and raises another's child
alabardero
a guard who carries a halberd (as a symbol of his duty)
alguacil
a law officer having duties similar to those of a sheriff in carrying out the judgments of a court of law
peme,
policía militar
a member of the military police who polices soldiers and guards prisoners
escolta
an escort who rides ahead (as a member of the vanguard)
sheriff,
shérif
the principal law-enforcement officer in a county
policia montado,
ranger
a member of the Texas state highway patrol; formerly a mounted lawman who maintained order on the frontier
alcaide
a person who works in a prison and is in charge of prisoners