arrest
authority
bar
block
book
cage
caught
cell
closing
conclusion
convict
criminal
custody
dangerous criminal
detention
duty
education
gaol
grate
guard
guilty
illegal
imprison
imprisonment
indoor
indoors
inmate
jail
judgment
leading prisoner
locked
orange
prison
prison bars
prison cell
prison guard
prison officer
prisoner
professional occupation
punishment
reading
reading book
room
security
security guard
stress
system
uniform
walking
wall