Lockdown is something imposed for the safety of the operation of the jail. There are no limits to the amount of time they can keep inmates in lockdown. There are no statutes that require inmates to have any liberties, and lockdowns occur when the inmates have done something against the rules.
https://www.inmateaid.com/ask-the-inmate/how-long-can-the-city-jail-keep-u-on-lockdown#answer
Accepted Answer Date Created: February 14,2016