How long can a family court judge detain your foreign passport for a civil case?

A family court judge can typically detain a foreign passport for the duration of a civil case if there are valid concerns about potential flight risk or non-compliance with court orders. This detention is usually temporary and should be lifted once the court resolves the issues at hand. However, the specifics can vary by jurisdiction, so it's essential to consult local laws or a legal professional for precise guidance.