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Detectives and Criminal Investigators

Conduct investigations related to suspected violations of federal, state, or local laws to prevent or solve crimes.
  • Summary

  • Details

  • Work Activities

    • Maintain surveillance of establishments to obtain identifying information on suspects.
    • Notify command of situation and request assistance.
    • Obtain and verify evidence by interviewing and observing suspects and witnesses or by analyzing records.
    • Secure persons at scene, keeping witnesses from conversing or leaving the scene before investigators arrive.
    • Summon medical help for injured individuals and alert medical personnel to take statements from them.
    • Obtain and verify evidence by interviewing and observing suspects and witnesses or by analyzing records.
    • Block or rope off scene and check perimeter to ensure that entire scene is secured.
    • Identify case issues and evidence needed, based on analysis of charges, complaints, or allegations of law violations.
    • Perform undercover assignments and maintain surveillance, including monitoring authorized wiretaps.
    • Obtain summary of incident from officer in charge at crime scene, taking care to avoid disturbing evidence.
    • Preserve, process, and analyze items of evidence obtained from crime scenes and suspects, placing them in proper containers and destroying evidence no longer needed.
    • Obtain facts or statements from complainants, witnesses, and accused persons and record interviews, using recording device.
    • Secure deceased body and obtain evidence from it, preventing bystanders from tampering with it prior to medical examiner's arrival.
    • Record progress of investigation, maintain informational files on suspects, and submit reports to commanding officer or magistrate to authorize warrants.
    • Question individuals or observe persons and establishments to confirm information given to patrol officers.
    • Collaborate with other offices and agencies to exchange information and coordinate activities.
    • Prepare and serve search and arrest warrants.
    • Participate or assist in raids and arrests.
    • Provide information to lab personnel concerning the source of an item of evidence and tests to be performed.
    • Question individuals or observe persons and establishments to confirm information given to patrol officers.
    • Examine records and governmental agency files to find identifying data about suspects.
    • Organize scene search, assigning specific tasks and areas of search to individual officers and obtaining adequate lighting as necessary.
    • Preserve, process, and analyze items of evidence obtained from crime scenes and suspects, placing them in proper containers and destroying evidence no longer needed.
    • Check victims for signs of life, such as breathing and pulse.
    • Prepare reports that detail investigation findings.
    • Secure deceased body and obtain evidence from it, preventing bystanders from tampering with it prior to medical examiner's arrival.
    • Record progress of investigation, maintain informational files on suspects, and submit reports to commanding officer or magistrate to authorize warrants.
    • Note, mark, and photograph location of objects found, such as footprints, tire tracks, bullets and bloodstains, and take measurements of the scene.
    • Examine records and governmental agency files to find identifying data about suspects.
    • Determine scope, timing, and direction of investigations.
    • Summon medical help for injured individuals and alert medical personnel to take statements from them.
    • Notify, or request notification of, medical examiner or district attorney representative.
    • Prepare charges or responses to charges, or information for court cases, according to formalized procedures.
    • Analyze completed police reports to determine what additional information and investigative work is needed.
    • Obtain and verify evidence by interviewing and observing suspects and witnesses or by analyzing records.
    • Testify before grand juries concerning criminal activity investigations.
    • Search for and collect evidence, such as fingerprints, using investigative equipment.
    • Examine records to locate links in chains of evidence or information.
    • Notify command of situation and request assistance.

    Skills

    • Persuasion
      • Talking people into changing their minds or their behavior.
    • Writing
      • Writing things for co-workers or customers.
    • Science
      • Using scientific rules and strategies to solve problems.
    • Complex Problem Solving
      • Noticing a problem and figuring out the best way to solve it.
    • Service Orientation
      • Looking for ways to help people.
    • Management of Personnel Resources
      • Selecting and managing the best workers for a job.
    • Active Learning
      • Figuring out how to use new ideas or things.
    • Speaking
      • Talking to others.
    • Instructing
      • Teaching people how to do something.
    • Technology Design
      • Making equipment and technology useful for customers.
    • Quality Control Analysis
      • Testing how well a product or service works.
    • Systems Evaluation
      • Measuring how well a system is working and how to improve it.
    • Reading Comprehension
      • Reading work-related information.
    • Learning Strategies
      • Using the best training or teaching strategies for learning new things.
    • Critical Thinking
      • Thinking about the pros and cons of different ways to solve a problem.
    • Operations Analysis
      • Figuring out what a product or service needs to be able to do.
    • Programming
      • Writing computer programs.
    • Equipment Selection
      • Deciding what kind of tools and equipment are needed to do a job.
    • Operations Monitoring
      • Watching gauges, dials, or display screens to make sure a machine is working.
    • Installation
      • Installing equipment, machines, wiring, or computer programs.
    • Operation and Control
      • Using equipment or systems.
    • Repairing
      • Repairing machines or systems using the right tools.
    • Troubleshooting
      • Figuring out what is causing equipment, machines, wiring, or computer programs to not work.
    • Equipment Maintenance
      • Planning and doing the basic maintenance on equipment.
    • Time Management
      • Managing your time and the time of other people.
    • Mathematics
      • Using math to solve problems.
    • Social Perceptiveness
      • Understanding people's reactions.
    • Negotiation
      • Bringing people together to solve differences.
    • Systems Analysis
      • Figuring out how a system should work and how changes in the future will affect it.
    • Management of Material Resources
      • Managing equipment and materials.
    • Judgment and Decision Making
      • Thinking about the pros and cons of different options and picking the best one.
    • Management of Financial Resources
      • Making spending decisions and keeping track of what is spent.
    • Active Listening
      • Listening to others, not interrupting, and asking good questions.
    • Monitoring
      • Keeping track of how well people and/or groups are doing in order to make improvements.
    • Coordination
      • Changing what is done based on other people's actions.

    Abilities

    • Memorization
      • Remembering words, numbers, pictures, or steps.
    • Flexibility of Closure
      • Seeing hidden patterns.
    • Control Precision
      • Quickly changing the controls of a machine, car, truck or boat.
    • Manual Dexterity
      • Holding or moving items with your hands.
    • Problem Sensitivity
      • Noticing when problems happen.
    • Number Facility
      • Adding, subtracting, multiplying, or dividing.
    • Extent Flexibility
      • Bending, stretching, twisting, or reaching with your body, arms, and/or legs.
    • Gross Body Equilibrium
      • Keeping your balance or staying upright.
    • Glare Sensitivity
      • Seeing something even if there is a glare or very bright light.
    • Arm-Hand Steadiness
      • Keeping your arm or hand steady.
    • Originality
      • Creating new and original ideas.
    • Dynamic Strength
      • Exercising for a long time without your muscles getting tired.
    • Far Vision
      • Seeing details that are far away.
    • Gross Body Coordination
      • Moving your arms, legs, and mid-section together while your whole body is moving.
    • Speech Recognition
      • Recognizing spoken words.
    • Sound Localization
      • Noticing the direction that a sound came from.
    • Explosive Strength
      • Jumping, sprinting, or throwing something.
    • Fluency of Ideas
      • Coming up with lots of ideas.
    • Peripheral Vision
      • Seeing something to your side when your are looking ahead.
    • Trunk Strength
      • Using your lower back and stomach.
    • Visual Color Discrimination
      • Noticing the difference between colors, including shades and brightness.
    • Perceptual Speed
      • Quickly comparing groups of letters, numbers, pictures, or other things.
    • Time Sharing
      • Doing two or more things at the same time.
    • Multilimb Coordination
      • Using your arms and/or legs together while sitting, standing, or lying down.
    • Finger Dexterity
      • Putting together small parts with your fingers.
    • Speed of Closure
      • Quickly knowing what you are looking at.
    • Selective Attention
      • Paying attention to something without being distracted.
    • Deductive Reasoning
      • Using rules to solve problems.
    • Mathematical Reasoning
      • Choosing the right type of math to solve a problem.
    • Written Comprehension
      • Reading and understanding what is written.
    • Auditory Attention
      • Paying attention to one sound while there are other distracting sounds.
    • Dynamic Flexibility
      • Quickly and repeatedly bending, stretching, twisting, or reaching out with your body, arms, and/or legs.
    • Static Strength
      • Lifting, pushing, pulling, or carrying.
    • Speed of Limb Movement
      • Quickly moving your arms and legs.
    • Wrist-Finger Speed
      • Making fast, simple, repeated movements of your fingers, hands, and wrists.
    • Response Orientation
      • Quickly deciding if you should move your hand, foot, or other body part.
    • Depth Perception
      • Deciding which thing is closer or farther away from you, or deciding how far away it is from you.
    • Oral Comprehension
      • Listening and understanding what people say.
    • Inductive Reasoning
      • Making general rules or coming up with answers from lots of detailed information.
    • Information Ordering
      • Ordering or arranging things.
    • Speech Clarity
      • Speaking clearly.
    • Reaction Time
      • Quickly moving your hand, finger, or foot based on a sound, light, picture or other command.
    • Visualization
      • Imagining how something will look after it is moved around or changed.
    • Spatial Orientation
      • Knowing where things are around you.
    • Rate Control
      • Changing when and how fast you move based on how something else is moving.
    • Written Expression
      • Communicating by writing.
    • Oral Expression
      • Communicating by speaking.
    • Category Flexibility
      • Grouping things in different ways.
    • Near Vision
      • Seeing details up close.
    • Stamina
      • Exercising for a long time without getting out of breath.
    • Night Vision
      • Seeing at night or under low light.
    • Hearing Sensitivity
      • Telling the difference between sounds.

    Knowledge

    • Production and Processing
      • Knowledge of raw materials, production processes, quality control, costs, and other techniques for maximizing the effective manufacture and distribution of goods.
    • Physics
      • Knowledge and prediction of physical principles, laws, their interrelationships, and applications to understanding fluid, material, and atmospheric dynamics, and mechanical, electrical, atomic and sub-atomic structures and processes.
    • Sales and Marketing
      • Knowledge of principles and methods for showing, promoting, and selling products or services. This includes marketing strategy and tactics, product demonstration, sales techniques, and sales control systems.
    • Food Production
      • Knowledge of techniques and equipment for planting, growing, and harvesting food products (both plant and animal) for consumption, including storage/handling techniques.
    • Chemistry
      • Knowledge of the chemical composition, structure, and properties of substances and of the chemical processes and transformations that they undergo. This includes uses of chemicals and their interactions, danger signs, production techniques, and disposal methods.
    • Mathematics
      • Knowledge of arithmetic, algebra, geometry, calculus, statistics, and their applications.
    • Law and Government
      • Knowledge of laws, legal codes, court procedures, precedents, government regulations, executive orders, agency rules, and the democratic political process.
    • Computers and Electronics
      • Knowledge of circuit boards, processors, chips, electronic equipment, and computer hardware and software, including applications and programming.
    • Biology
      • Knowledge of plant and animal organisms, their tissues, cells, functions, interdependencies, and interactions with each other and the environment.
    • Fine Arts
      • Knowledge of the theory and techniques required to compose, produce, and perform works of music, dance, visual arts, drama, and sculpture.
    • Medicine and Dentistry
      • Knowledge of the information and techniques needed to diagnose and treat human injuries, diseases, and deformities. This includes symptoms, treatment alternatives, drug properties and interactions, and preventive health-care measures.
    • Economics and Accounting
      • Knowledge of economic and accounting principles and practices, the financial markets, banking, and the analysis and reporting of financial data.
    • History and Archeology
      • Knowledge of historical events and their causes, indicators, and effects on civilizations and cultures.
    • Administration and Management
      • Knowledge of business and management principles involved in strategic planning, resource allocation, human resources modeling, leadership technique, production methods, and coordination of people and resources.
    • Transportation
      • Knowledge of principles and methods for moving people or goods by air, rail, sea, or road, including the relative costs and benefits.
    • Philosophy and Theology
      • Knowledge of different philosophical systems and religions. This includes their basic principles, values, ethics, ways of thinking, customs, practices, and their impact on human culture.
    • Mechanical
      • Knowledge of machines and tools, including their designs, uses, repair, and maintenance.
    • Education and Training
      • Knowledge of principles and methods for curriculum and training design, teaching and instruction for individuals and groups, and the measurement of training effects.
    • Telecommunications
      • Knowledge of transmission, broadcasting, switching, control, and operation of telecommunications systems.
    • Administrative
      • Knowledge of administrative and office procedures and systems such as word processing, managing files and records, stenography and transcription, designing forms, and workplace terminology.
    • Engineering and Technology
      • Knowledge of the practical application of engineering science and technology. This includes applying principles, techniques, procedures, and equipment to the design and production of various goods and services.
    • Building and Construction
      • Knowledge of materials, methods, and the tools involved in the construction or repair of houses, buildings, or other structures such as highways and roads.
    • Psychology
      • Knowledge of human behavior and performance; individual differences in ability, personality, and interests; learning and motivation; psychological research methods; and the assessment and treatment of behavioral and affective disorders.
    • Geography
      • Knowledge of principles and methods for describing the features of land, sea, and air masses, including their physical characteristics, locations, interrelationships, and distribution of plant, animal, and human life.
    • Design
      • Knowledge of design techniques, tools, and principles involved in production of precision technical plans, blueprints, drawings, and models.
    • Sociology and Anthropology
      • Knowledge of group behavior and dynamics, societal trends and influences, human migrations, ethnicity, cultures, and their history and origins.
    • English Language
      • Knowledge of the structure and content of the English language including the meaning and spelling of words, and rules of composition and grammar.
    • Communications and Media
      • Knowledge of media production, communication, and dissemination techniques and methods. This includes alternative ways to inform and entertain via written, oral, and visual media.
    • Customer and Personal Service
      • Knowledge of principles and processes for providing customer and personal services. This includes customer needs assessment, meeting quality standards for services, and evaluation of customer satisfaction.
    • Public Safety and Security
      • Knowledge of relevant equipment, policies, procedures, and strategies to promote effective local, state, or national security operations for the protection of people, data, property, and institutions.
    • Foreign Language
      • Knowledge of the structure and content of a foreign (non-English) language including the meaning and spelling of words, rules of composition and grammar, and pronunciation.
    • Personnel and Human Resources
      • Knowledge of principles and procedures for personnel recruitment, selection, training, compensation and benefits, labor relations and negotiation, and personnel information systems.
    • Therapy and Counseling
      • Knowledge of principles, methods, and procedures for diagnosis, treatment, and rehabilitation of physical and mental dysfunctions, and for career counseling and guidance.

    Education

    Education
    High school diploma or equivalent
    Work Experience
    Less than 5 years work experience
    Training
    1 to 12 months on-the-job training

    Pay

    Washington Annual Salary
    116450/yr
    Washington Hourly Wage
    55.99/hr

    Washington Employment Trends

    Currently Employed
    2,010
    Yearly Projected Openings
    170

    Personality

    Investigative: People interested in this work like activities that include ideas, thinking, and figuring things out. They do well at jobs that need:
    • Integrity
    • Self Control
    • Dependability
    • Stress Tolerance
    • Attention to Detail
    • Adaptability/Flexibility

    Tools

    • Alcohol analyzers
    • Binocular light compound microscopes
    • Biological evidence collection kits
    • Body armour
    • Bullet proof vests
    • Desktop computers
    • Dictation machines
    • Digital camcorders or video cameras
    • Digital cameras
    • Fingerprint equipment
    • Fingerprint latent print kits
    • Flares
    • Footprint lifters
    • Footwear covers
    • Gas generators
    • Goggles
    • Hand sprayers
    • Handcuffs
    • Handguns
    • Hazardous material protective apparel
    • Infrared lamps
    • Instant print cameras
    • Lasers
    • Masks or accessories
    • Measuring wheels for distance
    • Metal detectors
    • Military rifles
    • Mobile medical services automated external defibrillators AED or hard paddles
    • Mobile medical services first aid kits
    • Narcotic test kits
    • Night sticks
    • Notebook computers
    • Personal computers
    • Physiological recorders
    • Police or security shotguns
    • Police vehicles
    • Protective gloves
    • Radarbased surveillance systems
    • Riot batons
    • Riot helmets
    • Riot shields
    • Rulers
    • Still cameras
    • Surveillance video or audio recorders
    • Tape measures
    • Two way radios
    • Ultraviolet UV lamps
    • Weapon or explosives detectors and supplies

    Technology

    • Analytical or scientific software
    • Data base user interface and query software
    • Desktop publishing software
    • Electronic mail software
    • Geographic information system
    • Graphics or photo imaging software
    • Internet browser software
    • Map creation software
    • Network monitoring software
    • Office suite software
    • Operating system software
    • Presentation software
    • Process mapping and design software
    • Project management software
    • Spreadsheet software
    • Word processing software