From English - German Ding/FreeDict dictionary ver. 1.9-fd1:
jails /dʒˈeɪlz/
Gefängnisse <pl>, Kerker <pl>, Zuchthäuser <pl>
"overcrowded prisons/jails" - überfüllte Gefängnisse
Synonyms: prisons, gaols
From English - German Ding/FreeDict dictionary ver. 1.9-fd1:
jails /dʒˈeɪlz/
Justizvollzugsanstalten <pl>, Strafvollzugsanstalten <pl>, Vollzugsanstalten <pl>, Strafanstalten <pl>, Haftanstalten <pl>, Justizanstalten <pl>, Gefangenenhäuser <pl>, Kotter <pl>
Synonyms: penal institutions, correctional institutions, prisons, penitentiaries, pens, big houses, calabooses
see: penal institution, correctional institution, prison, jail, penitentiary, pen, big house, calaboose, female offenders institution, women detention centre / center, young offenders institution, youth detention center, juvenile detention centre, juvenile hall, juvenile prison