Force Science News #85:
Two Officer-Survival Studies Due to Kick Off in New FSRC Facilities
Two officer-survival studies due to kick off in new FSRC facilities
Pilot studies for 2 new research projects with significant officer-survival implications will get underway next month [12/07] at a new testing facility designed by the Force Science Research Center near the campus of Minnesota State University-Mankato.
One study will seek to measure the time required for an “attentional shift” during a high-stress, potentially violent confrontation. That is, how long does it take the average law enforcement officer to detect, absorb, and react to changes in his visual field while he is attempting to concentrate on and deal with a primary threat to his safety.
“What we discover in this study could change the way many officers approach potentially dangerous situations,” Lewinski claims. “Not by making them paranoid, but by convincing them of the importance of planning ahead rather than attempting the impossible by trying to out-time a sudden, unexpected threat.”
The second pilot will expand on earlier FSRC studies of biomechanics (how and how fast do suspects move during certain force confrontations) and also will try to identify important visual cues that may constitute precursors of an armed assault.
“We plan to look particularly at suspects who are lying prone on the ground, with the hands hidden under their body,” Lewinski explains. “How long does it take a suspect to roll up enough from that position to point a gun and fire at an officer, and what early indication might an officer see as a warning that such a threat is being activated.”
New Testing Facilities.
The pilot studies, which are intended to get the bugs out of testing procedures before researchers launch their comprehensive investigations, will be conducted in a newly opened 1,000-sq. ft. laboratory built to FSRC’s specifications as part of the Center’s new headquarters in downtown Mankato.
Occupying 3,500 sq. ft. in a historic stone building more than a century old, the centralized headquarters, which have been in development for over a year, permit consolidation of administrative offices, conference space, and the laboratory “for testing the technology and design elements of our research projects,” Lewinski says. Some full-scale research can be conducted there as well.
The lab’s appointments include an EEG (electroencephalogram) room, specially insulated against sound, vibration, and electrical interference, where sophisticated computerized equipment can record brain activity of officers as they engage in a variety of experimental activities. This room was designed by FSRC’s deputy director, Dr. Bill Hudson, an electrical engineer, and Dr. Jonathan Page, a specialist in experimental psychology and a member of FSRC’s technical advisory board.
The lab also is outfitted with an updated simulation equipment package, supplied by Ti Training of Englewood, CO, an FSRC research partner. “This will allow us in the future to create our own simulation scenarios, specifically tailored for our research needs,” Lewinski explains. Todd Brown, a Ti representative and one of the Center’s tech advisors, will coordinate this component of the laboratory.
A state-of-the-art lighting system in the laboratory “permits us to control light at any level, from full-bright illumination to total darkness, without hampering the versatility or accuracy of our recording equipment during experiments,” Lewinski says.
The pilot shakedowns for the Center’s 2 new projects are expected to take about a month, with the full-scale research then extending into next spring.
Attentional Shift Study.
The post-pilot component of this research will involve a minimum of 60 officer volunteers, participating in testing first at the FSRC laboratory and then at LE agencies elsewhere in Minnesota.
One at a time, the officers will face a downrange target with their gun out, as if concentrating on controlling a dangerous suspect. In unpredictable patterns, various lights will pop on within their focal area (7 to 9 degrees to each side). Some may represent new threats, others mere distractions.
The officers will have to notice each light display, mentally identify the meaning of it, and respond appropriately, pulling the trigger when a reaction is required.
The gun involved has an ultra-sensitive sensor embedded in it, allowing a computerized measurement of trigger pull in 320 discrete units, with the trigger position recorded every 10 milliseconds, Lewinski says.
“We’ll be able to tell the quickest, the slowest, and the average time for recognition of changes in the visual field and for reaction to them, and we expect the implications to be profound,” Lewinski says.
For one thing, he believes the findings will motivate officers to take more time to assess suspects and environments before entering potentially dangerous scenes.
“Once officers understand how very badly behind the reactionary curve they are when sudden shifts in attention are required, they’ll be encouraged to more thoroughly assess ahead of time what they may be moving into and to strategize how best to enter and cope with the situation to minimize the possibility of threatening surprises,” Lewinski explains.
“When they learn to maximize preventive tactics, such as using cover or otherwise positioning themselves to advantage, they’ll be more comfortable with encounters and better able to focus on their primary transactions.”
For this study, expected to run from January through April, Jonathan Page, a researcher of cognitive and brain science at Minnesota State, will monitor the volunteers’ brain activity with EEG equipment. Andy Miner of MSU’s Electrical and Computer Engineering Dept. will operate the stimulus and computer gear involved. The gun/sensor unit to be used was designed by Miner and Bill Hudson. Overseeing the research will be Ray Knutson, a reserve officer with Minneapolis PD and a clinical psychologist in the Minnesota state hospital system, specializing in criminally deviant behavior. He will detail the project as part of his doctoral research.
Biomechanics/Visual Cues Study.
In earlier research, FSRC has identified and timed some 15 different motions and their variations that suspects display when engaging officers in gunfights. This new study will expand that database, with particular emphasis on suspects who are prone on the ground with their hands hidden.
The test subjects will be 60 civilian volunteers who will be filmed and timed to see how long it takes them to roll from a prone position (handgun hidden under them at waistline or at chest level) to a position where they can shoot.
Timing will also be done of what Lewinski terms the “pseudo-suicide threat.” That’s where a subject who is pointing a handgun at his own head, suddenly points it at an officer and fires.
The action will be filmed by 3 computer-linked, synchronized high-speed cameras that will be positioned at different angles. During an analysis of the action, which can be filmed at up to 650 frames per second, the recorded images can be frozen frame by frame so that all 3 angles can be viewed simultaneously on a computer screen for detailed scrutiny and timing.
The cameras, part of a $25,000 technology package, will be provided by the Northeast Wisconsin Technical College in Green Bay, an FSRC research partner. Most of the research will be conducted there, with Erik Walters, a tactics instructor at the college, coordinating the project. Lewinski will be in charge of the research.
Based on some preliminary investigation, Lewinski believes that the study may find that a prone subject can roll to either side and shoot in as little as one-third of a second. “If 2 officers were approaching a prone suspect in a contact/cover configuration, this would be faster than a cover officer could respond to stop the threat even if he had his finger on the trigger when the suspect moved.”
Part of the research analysis will involve trying to identify early cues that a downed suspect is beginning to roll. “The filming may show that a suspect’s hips may be the first part of his body to move when he’s starting to roll,” Lewinski says. “If we can pin down the precise dynamics, our findings may be able to give an officer a split-second jump on reacting.
“The findings may also suggest how best to approach-or whether to approach at all-when a suspect is lying on his hands.”
This research, scheduled to begin in Janbuary, is expected to run until May.
Other New Developments.
Two other new developments are underway that will help advance FSRC’s mission to study use-of-force issues and communicate its findings to the law enforcement community:
Cst. Dave Blocksidge has been directed by the London Met Police to act as liaison with FSRC in the management of a variety of English-funded research projects currently underway in the London area.
Dr. Lewinski has been named an associate editor of the Law Enforcement Executive Forum, a peer-reviewed, bi-monthly publication of the Illinois Law Enforcement Training and Standards Board Executive Institute.
Starting next March, the Forum will dedicate a section on Force Science research in its forthcoming issues, in both print and electronic formats. Contributors are encouraged to submit articles on behavioral science research related to street-level law enforcement issues. The Forum will supplant the online e-journal previously planned by FSRC.
Written by Force Science Institute
November 3rd, 2007 at 7:25 pm
© 2017 Force Science Institute Ltd.