Wednesday’s lawsuit in St. Louis against 13,000-resident St. Ann alleges people unable to come up with bail ranging from $150 to $350 frequently have to spend at least three days in jail.

St. Louis-based ArchCity Defenders and Washington-based Equal Justice Under Law are pressing the lawsuit.

A message seeking comment was left Thursday with St. Ann’s city administrator.

Municipal courts in portions of the St. Louis area have come under increasing scrutiny since a Justice Department investigation after last summer’s police shooting death of Michael Brown in nearby Ferguson concluded Ferguson’s municipal court system driven by profit.