Hi,
Here are a couple of things that you should look at.

This is old from Dec 2002.
The first one talks about GE working with Alanco.
"Alanco Technologies (NASDAQ: ALAN) said yesterday that it has agreed to work with GE Public Finance to provide special lease financing deals for the TSI PRISM RFID tracking systems for prison security management. PRISM was developed by Alanco subsidiary Technology Systems International of Scottsdale, Ariz.

With the PRISM system, inmates wear miniature RFID transmitters in a tamper-proof wristband. Guards also wear a transmitter with a "man down" button. Each transmitter broadcasts a signal every two seconds to readers throughout a prison".
Full article
http://www.rfidjournal.com/article/articleview/241/1/1


The next one is older Jul 2002.
"Tracking prisoners hasn't evolved much since the invention of leg irons. But RFID may change that. Technology Systems International Inc. (TSI), a subsidiary of Alanco Technologies Inc., has signed a $3 million contract to install its inmate tracking system at an undisclosed prison in the Midwest".
Full article
http://www.rfidjournal.com/article/view/36/1/1


The company can be found at:
http://www.tsilink.com/

Hope this helps,

Regards,
Bob