Jailer

Going to jail or being confined in a dream is a representation of deep or repressed guilt. Traditionally interpretations of someone being a jailer in a dream is indicative of someone that you have wronged but often this person can also be an archetype.
To dream of someone in jail can indicate your own repressed and trapped feelings. Before you look towards others in your waking life to see what your dream is about, understand that often these types of dreams are about you and your own feelings or ideas. When you dream of someone specifically putting you in jail, this can simply be a representation of your own psyche expressing guilt, remorse, or dismay about actions that you have taken against another in which you feel like you should get or are going to get some repercussion.