this site might not even be close to what you got but it might be helpful
http://www.esakc.com/HookUp.htm
Fees:
1. $25 hook-up fee (one-time charge)
2. Weekly offender check-in
• Payment for service
• Make schedule changes
• Review previous daily activity reports
3. Travel fee for jail release.
4. EHD – House arrest anklet:
$12/day plus clear line
5. Sobrietor – Home breathalyzer:
$15/day plus clear line
6. SCRAM – Alcohol anklet:
$15/day plus analog line
7. $25 late fee (equipment must be returned within 1 week of last day of monitoring or weekly fee assessed.)
8. Ignition Interlock - $40 installation fee, $70/month equipment lease with $5/month optional equipment insurance, $35 de-install fee, $35 missed appointment fee
if this applies to you and you are getting hit for 15 a month then you might be monitored for alcohol. If it's only 12 your only getting watched... so why not get drunk
I would look for a similar site in your own area to get more info