Description:
Collect, identify, classify, and analyze physical evidence related to criminal investigations. Perform tests on weapons or substances, such as fiber, hair, and tissue to determine significance to investigation. May testify as expert witnesses on evidence or crime laboratory techniques. May serve as specialists in area of expertise, such as ballistics, fingerprinting, handwriting, or biochemistry.
Tasks
- Testify in court about investigative and analytical methods and findings.
- Keep records and prepare reports detailing findings, investigative methods, and laboratory techniques.
- Interpret laboratory findings and test results to identify and classify substances, materials, and other evidence collected at crime scenes.
- Operate and maintain laboratory equipment and apparatus.
- Prepare solutions, reagents, and sample formulations needed for laboratory work.
- Analyze and classify biological fluids using DNA typing or serological techniques.
- Collect evidence from crime scenes, storing it in conditions that preserve its integrity.
- Identify and quantify drugs and poisons found in biological fluids and tissues, in foods, and at crime scenes.
- Analyze handwritten and machine-produced textual evidence to decipher altered or obliterated text or to determine authorship, age, or source.
- Reconstruct crime scenes to determine relationships among pieces of evidence.
Knowledge
- 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.
- Law and Government
- Knowledge of laws, legal codes, court procedures, precedents, government regulations, executive orders, agency rules, and the democratic political process.
- English Language
- Knowledge of the structure and content of the English language including the meaning and spelling of words, rules of composition, and grammar.
- 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.
- Mathematics
- Knowledge of arithmetic, algebra, geometry, calculus, statistics, and their applications.
- Computers and Electronics
- Knowledge of circuit boards, processors, chips, electronic equipment, and computer hardware and software, including applications and programming.
- Clerical
- Knowledge of administrative and clerical procedures and systems such as word processing, managing files and records, stenography and transcription, designing forms, and other office procedures and terminology.
- Biology
- Knowledge of plant and animal organisms, their tissues, cells, functions, interdependencies, and interactions with each other and the environment.
- 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.
Skills
- Science
- Using scientific rules and methods to solve problems.
- Speaking
- Talking to others to convey information effectively.
- Quality Control Analysis
- Conducting tests and inspections of products, services, or processes to evaluate quality or performance.
- Reading Comprehension
- Understanding written sentences and paragraphs in work related documents.
- Critical Thinking
- Using logic and reasoning to identify the strengths and weaknesses of alternative solutions, conclusions or approaches to problems.
- Active Listening
- Giving full attention to what other people are saying, taking time to understand the points being made, asking questions as appropriate, and not interrupting at inappropriate times.
- Writing
- Communicating effectively in writing as appropriate for the needs of the audience.
- Active Learning
- Understanding the implications of new information for both current and future problem-solving and decision-making.
- Equipment Selection
- Determining the kind of tools and equipment needed to do a job.
- Coordination
- Adjusting actions in relation to others' actions.
Abilities
- Inductive Reasoning
- The ability to combine pieces of information to form general rules or conclusions (includes finding a relationship among seemingly unrelated events).
- Oral Expression
- The ability to communicate information and ideas in speaking so others will understand.
- Near Vision
- The ability to see details at close range (within a few feet of the observer).
- Oral Comprehension
- The ability to listen to and understand information and ideas presented through spoken words and sentences.
- Speech Clarity
- The ability to speak clearly so others can understand you.
- Information Ordering
- The ability to arrange things or actions in a certain order or pattern according to a specific rule or set of rules (e.g., patterns of numbers, letters, words, pictures, mathematical operations).
- Deductive Reasoning
- The ability to apply general rules to specific problems to produce answers that make sense.
- Written Expression
- The ability to communicate information and ideas in writing so others will understand.
- Problem Sensitivity
- The ability to tell when something is wrong or is likely to go wrong. It does not involve solving the problem, only recognizing there is a problem.
- Speech Recognition
- The ability to identify and understand the speech of another person.
Work Activities
- Identifying Objects, Actions, and Events
- Identifying information by categorizing, estimating, recognizing differences or similarities, and detecting changes in circumstances or events.
- Documenting/Recording Information
- Entering, transcribing, recording, storing, or maintaining information in written or electronic/magnetic form.
- Updating and Using Relevant Knowledge
- Keeping up-to-date technically and applying new knowledge to your job.
- Getting Information
- Observing, receiving, and otherwise obtaining information from all relevant sources.
- Making Decisions and Solving Problems
- Analyzing information and evaluating results to choose the best solution and solve problems.
- Interacting With Computers
- Using computers and computer systems (including hardware and software) to program, write software, set up functions, enter data, or process information.
- Communicating with Persons Outside Organization
- Communicating with people outside the organization, representing the organization to customers, the public, government, and other external sources. This information can be exchanged in person, in writing, or by telephone or e-mail.
- Interpreting the Meaning of Information for Others
- Translating or explaining what information means and how it can be used.
- Scheduling Work and Activities
- Scheduling events, programs, and activities, as well as the work of others.
- Evaluating Information to Determine Compliance with Standards
- Using relevant information and individual judgment to determine whether events or processes comply with laws, regulations, or standards.
Work Context
- Importance of Being Exact or Accurate
- How important is being very exact or highly accurate in performing this job?
- Indoors, Environmentally Controlled
- How often does this job require working indoors in environmentally controlled conditions?
- Face-to-Face Discussions
- How often do you have to have face-to-face discussions with individuals or teams in this job?
- Telephone
- How often do you have telephone conversations in this job?
- Contact With Others
- How much does this job require the worker to be in contact with others (face-to-face, by telephone, or otherwise) in order to perform it?
- Frequency of Decision Making
- How frequently is the worker required to make decisions that affect other people, the financial resources, and/or the image and reputation of the organization?
- Freedom to Make Decisions
- How much decision making freedom, without supervision, does the job offer?
- Electronic Mail
- How often do you use electronic mail in this job?
- Work With Work Group or Team
- How important is it to work with others in a group or team in this job?
- Deal With External Customers
- How important is it to work with external customers or the public in this job?
Interests
- Investigative
- Investigative occupations frequently involve working with ideas, and require an extensive amount of thinking. These occupations can involve searching for facts and figuring out problems mentally.
- Realistic
- Realistic occupations frequently involve work activities that include practical, hands-on problems and solutions. They often deal with plants, animals, and real-world materials like wood, tools, and machinery. Many of the occupations require working outside, and do not involve a lot of paperwork or working closely with others.
- Conventional
- Conventional occupations frequently involve following set procedures and routines. These occupations can include working with data and details more than with ideas. Usually there is a clear line of authority to follow.
- Artistic
- Artistic occupations frequently involve working with forms, designs and patterns. They often require self-expression and the work can be done without following a clear set of rules.
- Social
- Social occupations frequently involve working with, communicating with, and teaching people. These occupations often involve helping or providing service to others.
- Enterprising
- Enterprising occupations frequently involve starting up and carrying out projects. These occupations can involve leading people and making many decisions. Sometimes they require risk taking and often deal with business.
Work Style
- Integrity
- Job requires being honest and ethical.
- Attention to Detail
- Job requires being careful about detail and thorough in completing work tasks.
- Stress Tolerance
- Job requires accepting criticism and dealing calmly and effectively with high stress situations.
- Dependability
- Job requires being reliable, responsible, and dependable, and fulfilling obligations.
- Cooperation
- Job requires being pleasant with others on the job and displaying a good-natured, cooperative attitude.
- Self Control
- Job requires maintaining composure, keeping emotions in check, controlling anger, and avoiding aggressive behavior, even in very difficult situations.
- Adaptability/Flexibility
- Job requires being open to change (positive or negative) and to considerable variety in the workplace.
- Initiative
- Job requires a willingness to take on responsibilities and challenges.
- Analytical Thinking
- Job requires analyzing information and using logic to address work-related issues and problems.
- Persistence
- Job requires persistence in the face of obstacles.
Work Value
- Support
- Occupations that satisfy this work value offer supportive management that stands behind employees. Corresponding needs are Company Policies, Supervision: Human Relations and Supervision: Technical.
- Recognition
- Occupations that satisfy this work value offer advancement, potential for leadership, and are often considered prestigious. Corresponding needs are Advancement, Authority, Recognition and Social Status.
- Achievement
- Occupations that satisfy this work value are results oriented and allow employees to use their strongest abilities, giving them a feeling of accomplishment. Corresponding needs are Ability Utilization and Achievement.
- Independence
- Occupations that satisfy this work value allow employs to work on their own and make decisions. Corresponding needs are Creativity, Responsibility and Autonomy.
- Working Conditions
- Occupations that satisfy this work value offer job security and good working conditions. Corresponding needs are Activity, Compensation, Independence, Security, Variety and Working Conditions.
- Relationships
- Occupations that satisfy this work value allow employees to provide service to others and work with co-workers in a friendly non-competitive environment. Corresponding needs are Co-workers, Moral Values and Social Service.
Related Occupations
- Environmental Compliance Inspectors
- Coroners
- Product Safety Engineers
- Food Science Technicians
- Environmental Science and Protection Technicians, Including Health
- Occupational Health and Safety Specialists
- Fire Investigators
Common Lay Titles
- Ballistic Expert
- Ballistic Technician
- Ballistician
- Crime Lab Technician
- Crime Laboratory Analyst
- Crime Scene Analyst
- Crime Scene Examiner
- Crime Scene Investigator
- Crime Scene Technician
- Crime Specialist
- Criminalist
- Criminologist
- Detective
- Detective-Crime Scene Investigations
- Dna Analyst
- Evidence Technician
- Fingerprint Classifier
- Fingerprint Expert
- Forensic Analyst
- Forensic Ballistics Expert
- Forensic Chemist
- Forensic Investigator
- Forensic Scientist
- Handwriting Expert
- Keeler Polygraph Operator
- Latent Fingerprint Examiner
- Lie Detector Operator
- Polygraph Examiner
- Polygraph Operator