As reported in the St. Louis Post-Dispatch:
The Department of Corrections Board of Probation and Parole said it installed 364 GPS ankle monitors on sex offenders in April because of new security requirements. This was done even though lifetime monitoring was not part of their sentencing agreement.
Officials told them the retroactive requirements are part of a revised state criminal code that went into effect Jan. 1. Offenders who either were found guilty or pleaded guilty to various sex crimes based on an act committed on or after Aug. 28, 2006, were subject to the added security measures.
Read the full article here.