Police jurisdiction
replyanator

Waterloo, IL

#1 Jun 29, 2012
I understand the difference between the geographical boundaries between state, county, and city. However I donít get who is in charge or responsible for a particular legal circumstance when all jurisdictions could all potentially overlap. I know we have some cops who post on this site so can one of you guys provide some insight on this? Iím not in any trouble. Just curious.
retired ISP

Waterloo, IL

#2 Jun 30, 2012
If a traffic crash occured on Il 3 at the Columbia High School intersection......the Columbia Police, Illinois State Police, or Monroe County Sheriff's office COULD handle it/write citations, etc. That said, Columbia will handle the crash and the ISP and Monroe Co Sheriff's Office might/may assist with traffic control/crash re-construction. In Monroe County, the Waterloo, Valmeyer, and Columbia PDs will handle most all events that occur in their city limits. Unless, they have no patrol cars in service. The Sheriff's office will generally handle all events that occur on county roads and the ISP will handle all calls on the state highways and Interstates.
Laser Lady

Waterloo, IL

#3 Jul 1, 2012
So who gets jurisdiction for running speed traps? I have seen Waterloo, Columbia and MoCo running radar on Route 3, and I have seen Columbia, Dupo, ISP running radar on 255.
replyanator

Waterloo, IL

#4 Jul 1, 2012
Thanks retired ISP. What I gather is that there is an understood respect of boundaries between departments with overlapping jurisdictions in traffic issues. But what about more serious crimes such as murder? In other words could the State or County police take over an investigation of a murder in Columbia or Waterloo city limits, or do they wait until assistance is requested?

@Laser Lady, I have seen the same thing on 255.
retired ISP

Waterloo, IL

#5 Jul 1, 2012
The ISP or Monroe County SO would not take over a murder case in the city limits of Columbia unless the police chief requested it....or, if he requested the St Louis Major Case Squad. The ISP will almost always assist with any major traffic or criminal case if requested........they would not take over unless requested.

Speed traps......don't speed = no ticket (you would have to be speeding at least 10 mph over the limit to get stopped most of the time). To answer your statement.......Columbia, Monroe Co SO, and the ISP can issue tickets on I255/Il 3 in the Columbia City limits.

BTW, the ISP do not (DON'T) write tickets for revenue.......the money goes to the county that the ticket is written in and not to the ISP or State of Illinois except for a small amounfor training.
Laser Lady

Waterloo, IL

#6 Jul 1, 2012
retired ISP wrote:
The ISP or Monroe County SO would not take over a murder case in the city limits of Columbia unless the police chief requested it....or, if he requested the St Louis Major Case Squad. The ISP will almost always assist with any major traffic or criminal case if requested........they would not take over unless requested.
Speed traps......don't speed = no ticket (you would have to be speeding at least 10 mph over the limit to get stopped most of the time). To answer your statement.......Columbia, Monroe Co SO, and the ISP can issue tickets on I255/Il 3 in the Columbia City limits.
BTW, the ISP do not (DON'T) write tickets for revenue.......the money goes to the county that the ticket is written in and not to the ISP or State of Illinois except for a small amounfor training.
Thanks for the info - I really wasn't trying to be a smart aleck).(And for the record, I have never had a speeding ticket - at least not yet.) ;-)
turkey

Waterloo, IL

#7 Jul 28, 2012
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