Psychological services for those in the line of duty.
Our providers have 35+ years of experiencing working closely with Police & Fire Departments, EMS, DNR, Corrections, and Dispatch Centers to understand the unique stressors that public safety agencies face.
No matter where you serve, Thin Line Psychology is here to serve you.






In a Field Where Subject Matter Expertise is Essential, We are Trusted Public Safety Psychological Service Providers.
Available at our brick and mortar location in Wisconsin, or Virtual/Telehealth Assessment services available for departments in these states.
Located in Delafield, WI, Thin Line Psychological Services has been serving with municipal departments and public safety agencies for over 35 years. Our Providers have worked closely with police, fire, and sheriff's departments to develop an understanding and appreciation for the unique stressors faced in the line of duty.

Thin Line is a proud Supporting Business Member of the WCPA & WSFCA

Thin Line is a proud Supporting Business Member of the WCPA
Assessment
Pre-Employment Psychological Evaluations Fitness-For-Duty Evaluations Leadership & Specialty Assignment Evaluations
Consultation
Training & Workshops Executive, Management and Supervisor Consultation Operational Assistance

“Our agency has worked with Dr. Childs for over a decade, and we rely on his expertise and experience to hire the best candidates for our profession. As we face the challenges of a changing workforce, we have found his insight to be invaluable. Our department has had great success over the years in hiring and retaining top quality public service professionals and that is a direct result of his exhaustive and detailed pre-employment psychological assessments. I highly recommend Dr. Childs and his staff at Thin Line Psychological Services for any organization interested in improving and refining its hiring process.”South Milwaukee Police Department, Chief William Jessup

“Dr. Childs has been a trusted resource for the Whitewater Police Department for over a decade. Craig always takes the time to provide expert context whether it’s discussing a specific testing result, or the implementation of an agency-wide mental health program. He is truly second to none.”Chief Daniel Meyer, Whitewater PD

“The City of Delavan Police Department has been using Dr. Child's company for at least 20 years. Every review is fair, balanced, and accurate. When I say "accurate", I urge you to pay attention to the strengths and weaknesses outlined. The weaknesses will show as the training or time passes. The evaluation you are given will provide the insight needed to determine if you want to invest in the candidate.”Chief James Hansen, Delevan PD

“I cannot speak highly enough of Dr. Childs and his team at Thin Line Psychological Services. As a Police Chief, one of my greatest responsibilities is hiring people with the utmost integrity and ability to work in the Policing Profession. My trust in Dr. Childs and his staff is invaluable, as they exude the utmost professionalism in their procedure, communications, and thoroughness in psychological evaluations of Police Officer candidates. Our department and community depend on and appreciate Dr. Childs for his high standards and dedicated professional efforts informing these significant decisions.”Chief Matt Rokus, Eau Claire Police Department

“The West Allis Police Department has partnered with Dr. Childs for years to conduct pre-employment and fitness for duty testing, in addition to annual wellness visits. Dr. Childs is a proven professional who has helped us to evaluate potential new officers and to assist the department in navigating through delicate personnel matters. Department members who attend annual wellness visits speak highly of Dr. Childs. Dr. Childs has always treated his patients and clients with compassion and integrity. I would highly encourage partnering with Dr. Childs.”Chief Patrick Mitchell, West Allis PD

“Having worked closely with Thin Line Psychology for the duration of my employment, I have relied upon their expertise in the hiring and maintaining of our organizations Firefighters and Police Officers. I have witnessed firsthand their exceptional capabilities, professionalism and commitment to excellence. They are always responsive to my requests and deliver outstanding results. Thank you Thin Line for being the best at what you do!”Amy Frandsen, Human Resources Director, Onalaska PD,

“Our department has used Dr. Craig Childs and Thin Line Psychology for the past eight years and can’t be more satisfied. The pre-employment evaluation has been a game changer for us in determining our new employees. Dr Childs and Natalie are so accommodating and flexible and very easy to work with. When it comes to scheduling, I can’t be more impressed with their ability to work with our department for a date and time that works for us with our future employees.”Capt. Brad Timm, City of Oconomowoc PD

“Thin Line Psychology’s services have been a proven pre-employment and promotional partner for the Oak Creek Police Department. The information provided is backed by years of research, relevant to law enforcement, while providing excellent unbiased information to aid us in both employment and promotional processes. Dr. Childs and his staff are very knowledgeable while remaining available to discuss any questions that may arise. Having this established long-term relationship is paramount when unplanned situations arise, and we need to utilize their other services.”Chief David Stecker, Oak Creek PD

“The City of Appleton Police Department has had a long-time relationship with Thin Line Psychology and Dr. Childs. Dr. Childs has demonstrated his commitment and dedication to fostering a positive relationship built on trust. He has spent time gaining a deeper understanding of the unique needs of the department to provide relevant feedback. Dr. Childs has a demeanor and approach which quickly puts people at ease. He can effectively assess candidates and employees without causing undue stress and anxiety. I highly recommend placing your confidence and trust in Thin Line Psychology.”Chief Polly Olson, Appleton PD

“I have been working with Dr. Craig Childs for over 10 years in leadership roles at two different police agencies. Over that time, I have exclusively used Dr. Childs for our pre-employment psychological testing. He is professional but also friendly and down to earth. He provides a great written evaluation, and he is available to chat about his evaluation if questions or concerns arise. In addition to the pre-employment testing, I recently called upon Dr. Childs to conduct a leadership assessment for candidates for a Deputy Chief promotional process. His evaluation was extremely helpful in selecting the individual for promotion. Dr. Childs is also well connected in the law enforcement community, which helps him to better understand the unique needs and perspectives of policing. Lastly, Dr. Childs recently re-branded his practice as Thin Line Psychological Services. In doing so, he has brought on new staff. I will say that Natalie is extremely responsive and friendly, and she adds tremendous value to an already great practice. I have only kind words and accolades for Thin Line Psychological Services."Chief Christopher Botsch, Caledonia PD

“We have worked with Dr. Childs in conducting post-offer psychological evaluations for our Sheriff’s Deputies, Corrections Officers, 911 Dispatchers & Medical Examiner’s office for the last 4 years, during which time he has consistently demonstrated a thorough understanding of occupational psychology and the unique demands of public sector positions. Dr. Childs’ evaluations are comprehensive, objective, and aligned with industry standards and regulatory requirements. Dr. Childs’ expertise helps ensure that candidates meet the psychological suitability criteria necessary for roles that require sound judgment, emotional resilience, and high-stress management. Dr. Childs is known for his professionalism, timely reporting, and clear communication of evaluation results. These qualities have made Dr. Childs a trusted partner in our hiring process, providing insights that contribute to informed and fair employment decisions. I highly recommend Dr. Childs to any organization seeking expert post-offer psychological evaluation services.”Trista Murphy Human Resources, Marathon County

“I have worked with Dr. Childs for several years and he is a trusted part of our application process. Recruitment in law enforcement is one of the constant challenges Chief’s face, but ensuring that the candidates we hire possess the desired traits to meet the psychological demands of the profession helps to increase the success and retention of the officers. Knowing that we are sending individuals with the mental fitness and competencies to perform in law enforcement is invaluable and ensures we are doing all we can to provide our community with the best public servants possible. Dr. Childs is committed to the best practices in pre-employment evaluations and has always been willing to adapt to meet our department’s unique needs.”Chief Patrick Patton, Kenosha PD
Our Services:
Pre-Employment Psychological Evaluations Fitness-For-Duty Evaluations Leadership & Specialty Assignment Evaluations
Training & Workshops Executive, Management and Supervisor Consultation Operational Assistance
Our team has spent over 35 years becoming the best Psychological partner for your department.
The field of Police and Public Safety Psychology requires specialized knowledge above and beyond that which is taught in a general graduate school curriculum. Very few professionals know relevant research literature, follow national best practice guidelines, and have a working knowledge of relevant legal cases in addition to Federal and State regulations related to Police and Public Safety Psychology.
Our Providers are subject matter experts in this highly specialized area of practice who will not only provide high level services, but will do it the right way.
Approved Provider in most states through PSYPACT
Approved to practice interjurisdictional telepsychology (APIT) through the PSYPACT Commission to work with departments and individual clients virtually in most states.

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Frequently Asked Questions
Trust isn't given, it's earned. That's why we've spent the last 35 years serving the public safety community to earn our reputation as subject matter experts. Here are some common questions we've received over the years:
Public safety mental health and wellness has become a popular topic over the last several years. While attention to this area has been long overdue and has helped to increase access to much needed mental health services for those in uniform, this popularity can also have a downside. Providers with little to no training in this highly specialized area of practice have been drawn in based largely on a desire to help, which is commendable, though desire does not equate to knowledge and ability, making it extremely important for departments to carefully vet the providers they are utilizing for services.
The International Association of Chiefs of Police (IACP) has produced Guidelines for Consulting Police Psychologists that detail the competencies required to conduct these types of services with public safety agencies. The ultimate point of these guidelines is that the provider must not only be a skilled clinician, but they must understand public safety subculture, possess a sound understanding of the legal implications of this type of employment-related work, and have a firm understanding of relevant best practices and established guidelines. While most providers are trained to work in clinical practice settings, the majority are not trained to work with employers and employees as if often the case with public safety psychology work. You cannot simply take what you know of working with clinical patients and implement that within an occupational setting without potentially opening up the employee or employer to significant liability.
To vet your providers, at a minimum, you must ensure that they possess the appropriate license to work as a mental health provider in WI. You can verify this by looking up credentials on the Department of Safety and Professional Services’ website at https://licensesearch.wi.gov/. You will also want to ensure that their credentials are based in experience, training, and education, not due to factors such as being related to someone in public safety or having completed a for-profit course online about public safety work. Wisconsin has very few standards for who can practice within this specialty area of psychology and therefore the burden is squarely on the department to carefully vet the providers they allow to work with their employees.
Our providers understand the unique stressors associated with public safety positions. Chiefs, HR Directors, and Sheriffs alike are comfortable working with our firm because we speak their language, understand their world, and know how to guide them through situations without opening anyone up to liability needlessly. We work hard to maintain our current knowledge of best practices, national trends, case law, and especially public safety subcultures. What matters is, “Does your provider know enough to be considered an expert in Police and Public Safety Psychology and would they be comfortable referring to themselves as such in court?”
In short, “Yes.” We would love to tell you that our process is perfect and that our results are 100% guaranteed to be accurate, but that simply is not true. If anyone tells you that their process is flawless, be very wary. There is a wealth of research literature supporting the use of pre-employment psychological evaluations. Most states require pre-employment psychological evaluations when hiring for public safety positions. However, there are limitations to these evaluations.
At the end of the day, many hiring managers want to know if they are hiring someone who is likely to misuse their duty weapon or physically assault a citizen. They want to know, “Is this person going to go off and shoot someone or kill someone?” We are aware that some providers tell departments that their testing process can predict this type of violent aggression. Be very careful. If a psychologist tells you that they can predict violence, you are being sold Snake Oil. Psychologists simply cannot predict violence or aggression to the point of violence. We can identify characteristics such as impulsivity, anger proneness, and even aggression to a degree, but we cannot predict violent behavior. If and when someone figures out an accurate predictor of violence, you will know it – it will be front page news across the world. We are not there yet, but you will be told otherwise by some providers.
When you schedule your appointment, you will be asked to complete several standardized, psychological tests on a computer. You will also complete a face-to-face (most often virtual) interview with Dr. Childs. You will be asked about various aspects of your life (mental health history, work and educational background, hobbies and interests, etc). It may be helpful to have a resume or work history with you to reference during the interview.
Business casual attire is preferred, however, we understand that many candidates schedule their appointments immediately following work or long shifts and may present in more casual attire. Our providers’ attire will range from formal to more casual office attire depending on the activities scheduled in a given day. Please keep in mind, however, that these evaluations are taking place with a professional and should be treated as part of the hiring process.