Appendix A
Sample Model Operational Plan Low-Staffing Sobriety Checkpoints

Sobriety Checkpoint Operations Plan
The purpose of conducting three sobriety checkpoints during the same night is to send a message to motorists who are under the influence of alcohol or drugs that they may encounter a sobriety checkpoint anytime they get behind the wheel of a vehicle. They may encounter a checkpoint on any day of the week, at any time of the day, and on any street in Jefferson County.

As with any sobriety checkpoint, the word spreads fast of the checkpoint location and motorists under the influence avoid these areas. This operation is designed to be set up in 15 minutes, taken down, and moved to another location within a minimal amount of time, usually 15-30 minutes. By completing this, motorists under the influence may see the sobriety checkpoint at one location and avoid this area in fear of being arrested. If the motorists later travel another road, they may encounter another checkpoint and later on another checkpoint on another roadway. Statistics from the Tennessee Checkpoint Operation have proven this a more effective way of discouraging motorists under the influence of drugs and alcohol to drive.

10600 Block of West Ken Caryl Avenue

This particular location was selected due to the number of DWI arrests that have been made in the area. Approximately 41 percent of all DWI arrests made by deputies in unincorporated Jefferson County occur in this general vicinity. This location provides sufficient area for the necessary staging areas for the checkpoint and traffic will be able to flow smoothly and safely through the area. Drivers who choose not to be contacted can legally turn and avoid the checkpoint at South Kipling Street and Continental Divide for westbound traffic and South Simms Street, Chatfield Avenue and West Indore Drive for eastbound traffic. Variable messaging signs (VMS) warning motorists of the upcoming checkpoint will be placed before the checkpoint (see attached diagram.) The shoulder for east and westbound traffic is sufficient to maintain patrol cars for contact deputies/officers. The number two lanes for both east and westbound traffic will be coned off and also provide an area for roadsides.

Time: 1900 - 0330 hours.

These times were selected because since the beginning of 2003 96 percent of all DUI arrests made by Jefferson County deputies were made during these times. This also correlates and parallels with data produced in national studies.

Date: May 30, 2004 (Sunday)

Operations Plan:
The checkpoint will be placed in the 10600 Block of West Ken Caryl Avenue; six contact officers, three for eastbound traffic and three for westbound traffic, are assigned this duty. The contact officers patrol units will have all of their emergency lighting activated and their spotlights shining in the contact area. Reflective cones will be placed on the centerline and the number one lane will be blocked off by cones and a marked patrol car (see diagram). Reflective cones will also be placed against the median guiding the motorist into the pattern, approximately 50 feet in both directions. LED flares will be placed on the cones entering the contact area as well as the white roadway boundary line. Two traffic control officers, not being used as contact officers will be placed approximately 50 feet prior to the cone pattern and contact officers with their overhead emergency lighting activated to slow approaching motorists. Roadway portable speed bumps will also be placed before entering the cone pattern in each direction.

To comply with the law, a VMS sign will be placed on Ken Caryl Avenue just west of Chatfield Avenue for eastbound traffic. This will allow motorists to legally exit the highway onto South Simms Street, Chatfield Avenue and West Indore Drive before entering the sobriety checkpoint. One marked uniform motorcycle acting as a chase car will be placed at this location. One VMS sign will be placed just east of Kipling Street for westbound traffic. One marked uniform motorcycle will be placed at this location acting as a chase car. This will allow motorists to legally exit onto South Kipling Street and Continental Divide Road before entering the sobriety checkpoint.

One stationary sobriety checkpoint sign will be placed 100 feet west of Kipling Street on westbound Ken Caryl Avenue.

One stationary sobriety checkpoint sign will be placed on Continental Divide Road at the intersection of Ken Caryl Avenue.

One stationary sobriety checkpoint sign will be placed approximately 100 yards east of Chatfield Avenue on eastbound Ken Caryl Avenue.

The motorcycle officers’ responsibilities will be to watch for vehicles making inadvertent maneuvers to avoid the checkpoint.

Traffic will be maintained through both east and westbound traffic. Three contact officers at a time, per lane will be used looking for intoxicated drivers. If a suspected DUI is located, the driver will be directed off of the highway by the contact officer and onto the shoulder of the highway or into the blocked off number two lane. The contact officer will remain with the suspected intoxicated driver. If the contact officer determines that the person is not capable of driving the vehicle to the shoulder of the road the driver will be escorted from the vehicle and walked to the area where roadside maneuvers will be conducted. Another officer will then drive the vehicle to the shoulder of the road.

Patrol car spotlights will be the only lighting in the contact area. Contact officers leaving the contact area with their patrol cars will not leave until being relieved by another patrol unit that can illuminate the same area being vacated by the previous patrol unit. In the event generator-operated lighting (light towers) are used, special care should be taken so as not to blind any oncoming traffic.

Contact officers will be responsible for their own arrests. The only exception will be if the motorcycle or K-9 officers contact a DUI. In this case, an available contact officer will respond to pick up the suspected intoxicated driver. The motorcycle officer will complete a statement of probable cause for the stop and give it to the assisting contact officer. The contact officer will then proceed as if it were his arrest originally. If a driver is suspected of DUI, the driver will be taken into custody by the arresting officer and transported to the JCSO booking area. The driver’s vehicle will be searched incident to arrest and towed by the JCSO contract Tow Company. If a sober passenger is in the vehicle, the passenger may, with the driver’s permission, take responsibility for the vehicle. If the driver does not wish a passenger to take the vehicle, or the passenger(s) are unable to operate a motor vehicle, they will be taken to a nearby pay telephone that has a parking lot for safety. The motorcycle supervisor will make occasional runs through the parking lot to ensure the safety of these individuals. In no event will intoxicated passengers be allowed to leave on foot and in most cases these intoxicated passengers will be transported to the Arapahoe House for safety reasons.

Warning Devices
Warning devices will be used to warn motorists of the checkpoint and guide them into the checkpoint with a minimum amount of confusion, delay, and danger. VMS signs warning of the checkpoint will be placed before the checkpoint on Ken Caryl Avenue just west of South Simms Street for westbound motorists and just east of South Kipling Street on Ken Caryl Avenue. The motorcycle units will evaluate traffic conditions at the intersection of Ken Caryl Avenue and Continental Divide and Ken Caryl Avenue at South Simms Street notifying the operations sergeant of potential traffic back-ups. One stationary sobriety checkpoint sign will be placed 100 feet west of Kipling Street on westbound Ken Caryl Avenue. One stationary sobriety checkpoint sign will be placed on Continental Divide Road at the intersection of Ken Caryl Avenue. One stationary sobriety checkpoint sign will be placed approximately 100 yards east of Chatfield Avenue on eastbound Ken Caryl Avenue to alert motorists of the upcoming checkpoint.

During the checkpoint, effort will be made to stop every vehicle entering east and westbound Ken Caryl Avenue in the 10600 block. The only exceptions to this will be emergency vehicles on emergency runs.

Motorcycle officers responsible for traffic control/chase units will be placed at the junction of South Simms Street and Ken Caryl Avenue for eastbound traffic and South Kipling and Ken Caryl Avenue for westbound motorists. These officers will be responsible for monitoring the effect of the checkpoint on traffic at the two intersections.

Contact officers will conduct the standardized field sobriety tests on any driver they suspect as being intoxicated. If probable cause to arrest the driver exists, the contact officer will search the driver incident to that arrest and take the driver into custody. The contact officer will be responsible for completing all of the paperwork required by his/her agency for DUI arrests, including the affidavit and notice of revocation form. The arresting officer will transport the driver to the Jefferson County Jail for chemical testing and processing. If it is determined the driver is under the influence the arresting officer will call the operations sergeant and advise him the vehicle can now be towed.

Once the appropriate documents have been completed and served, the driver will be released to a sober adult or transported to the Arapahoe House. Copies of the documents generated will be forwarded to Sergeant Vette.

At 1900 hours, a briefing will be held at the Jefferson County Sheriffs Office, 200 Jefferson County Parkway, Golden, Colorado. The purpose of the briefing is to assign tasks and outline checkpoint procedures. Any questions that arise will be addressed at that time. A post-checkpoint critique and report will be completed to address any problems, ensure paperwork regarding arrests is completed, and to evaluate the overall success of the checkpoint.

Work Force Requirements and Responsibilities

Contact officers, traffic control officers, and chase car positions are all interchangeable so everyone will have to be familiar with everyone else’s position.

  • Driver Contact Officers (Line)/Roadside Evaluations (4)
  • Traffic Control Officers (0)
  • Chase Cars (0)
  • Cadets/Reserves-Statistics/pattern set-up and take-down (1)
  • Supervision (1)

Driver Contact Officers (Line) I Roadside Evaluations Officers will determine which drivers will be allowed through the pattern, and which will be directed to an evaluation area. Officers selected for this position should be familiar with the signs of intoxication and proficient in applying their knowledge. They will have a pre-rehearsed statement (i.e., “ I am Deputy/Officer (name) of the (name of department). You have been stopped at a sobriety checkpoint set up to identify intoxicated drivers), which they will recite to the drivers. Contact officers will base their decision to allow the driver through the pattern or to the evaluation area on the recognized signs of intoxication. Contact officer will not ask for driver’s licenses or any documentation. Any vehicle in which plain view observations of illegal activity (i.e., drug paraphernalia, etc.) are made will be directed to the evaluation area for further investigation. Contact officers directing drivers to the evaluation area will accompany the driver and continue the investigation in the evaluation area. Business cards may be given to motorists during the sobriety checkpoint.

Contact officers will be responsible for conducting sobriety examinations on drivers directed to the evaluation area. Officers selected for this role should be comfortable and proficient in the use of Standardized Field Sobriety Tests. Contact officers should be equipped with portable breath test (PBT) instruments (where applicable), however the decision to arrest should not be solely based upon these instruments. The contact officers will place drivers who do not satisfactorily complete the examination into custody.

Traffic Control Officers will be required to slow and guide drivers into the traffic control pattern and to the approaching driver contact officer. Reserve officers can be used for this role.


Jefferson County Sheriffs Department Personnel
Lieutenant D. Gard/Watch Commander/Supervision
V-1 6, Sergeant B. Vette-Supervision-Operations

Contact Officers
(List Names of Line Officers)

Public Information Officer
(List Name of Officers)

Sobriety Checkpoint Resource Lists
Resource Provider
Pre-Checkpoint publicity (X) CDOT, Jefferson County Sheriffs Office PLO
Traffic Control Equipment (X) Traffic Control Equipment (X) Jefferson County Sheriffs Office
(2) Variable Message Signs (VMS) and
50 reflective cones. JCSO- (1)
VMS sign and (10) stationary “Sobriety
Checkpoint Ahead” signs. 100 LED flares
Vehicle Towing (X) Towing Company
Detox. Services (X) Name Service (if applicable)
Blood Draw / Intoximeter Operator (X) Ambulance Service / Certified Intoximeter Operator


Low-Staffing Sobriety Checkpoint Assignment Reports
Due to Sobriety Checkpoints being governed by a U.S. Supreme Court decision, Michigan State Police v. Sitz, 1990, an assignment report should be completed and included with final reports and made available to the prosecutors and courts for prosecution.
(Name of Host Agency)
Low-Staffing Sobriety Checkpoint
Checkpoint Commander: _____________________________________
Command Vehicle Driver _____________________________________
Evidential Breath Test Operator _____________________________________
DRE _____________________________________
Phlebotomist _____________________________________
Public Information Officer _____________________________________
Traffic Control Devices _____________________________________
Traffic Control Set-up _____________________________________
Booking Officer(s) _____________________________________
Roving Patrol Vehicle(s) _____________________________________
Chase Car(s) _____________________________________
Checkpoint Line Officers _____________________________________
Volunteer(s) Assignments _____________________________________