Police Detectives

Description

Conduct investigations to prevent crimes or solve criminal cases.

Tasks

  • Provide testimony as a witness in court.
  • Secure deceased body and obtain evidence from it, preventing bystanders from tampering with it prior to medical examiner's arrival.
  • Examine crime scenes to obtain clues and evidence, such as loose hairs, fibers, clothing, or weapons.
  • Obtain evidence from suspects.
  • Record progress of investigation, maintain informational files on suspects, and submit reports to commanding officer or magistrate to authorize warrants.
  • Check victims for signs of life, such as breathing and pulse.
  • Prepare charges or responses to charges, or information for court cases, according to formalized procedures.
  • Obtain facts or statements from complainants, witnesses, and accused persons and record interviews, using recording device.
  • Prepare and serve search and arrest warrants.
  • Note, mark, and photograph location of objects found, such as footprints, tire tracks, bullets and bloodstains, and take measurements of the scene.
  • Preserve, process, and analyze items of evidence obtained from crime scenes and suspects, placing them in proper containers and destroying evidence no longer needed.
  • Question individuals or observe persons and establishments to confirm information given to patrol officers.
  • Secure persons at scene, keeping witnesses from conversing or leaving the scene before investigators arrive.
  • Take photographs from all angles of relevant parts of a crime scene, including entrance and exit routes and streets and intersections.
  • Analyze completed police reports to determine what additional information and investigative work is needed.
  • Obtain summary of incident from officer in charge at crime scene, taking care to avoid disturbing evidence.
  • Provide information to lab personnel concerning the source of an item of evidence and tests to be performed.
  • Examine records and governmental agency files to find identifying data about suspects.
  • Block or rope off scene and check perimeter to ensure that entire scene is secured.
  • Summon medical help for injured individuals and alert medical personnel to take statements from them.
  • Observe and photograph narcotic purchase transactions to compile evidence and protect undercover investigators.
  • Organize scene search, assigning specific tasks and areas of search to individual officers and obtaining adequate lighting as necessary.
  • Participate or assist in raids and arrests.
  • Coordinate with outside agencies and serve on interagency task forces to combat specific types of crime.
  • Note relevant details upon arrival at scene, such as time of day and weather conditions.
  • Maintain surveillance of establishments to obtain identifying information on suspects.
  • Notify command of situation and request assistance.
  • Videotape scenes where possible, including collection of evidence, examination of victim at scene, and defendants and witnesses.
  • Notify, or request notification of, medical examiner or district attorney representative.
  • Monitor conditions of victims who are unconscious so that arrangements can be made to take statements if consciousness is regained.
  • Schedule polygraph tests for consenting parties and record results of test interpretations for presentation with findings.

Knowledge

Law and Government — Knowledge of laws, legal codes, court procedures, precedents, government regulations, executive orders, agency rules, and the democratic political process.
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.
English Language — Knowledge of the structure and content of the English language including the meaning and spelling of words, rules of composition, and grammar.
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.
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.
Computers and Electronics — Knowledge of circuit boards, processors, chips, electronic equipment, and computer hardware and software, including applications and programming.
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.
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.
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.
Telecommunications — Knowledge of transmission, broadcasting, switching, control, and operation of telecommunications systems.

Skills

Critical Thinking — Using logic and reasoning to identify the strengths and weaknesses of alternative solutions, conclusions or approaches to problems.
Complex Problem Solving — Identifying complex problems and reviewing related information to develop and evaluate options and implement solutions.
Speaking — Talking to others to convey information effectively.
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.
Social Perceptiveness — Being aware of others' reactions and understanding why they react as they do.
Judgment and Decision Making — Considering the relative costs and benefits of potential actions to choose the most appropriate one.
Writing — Communicating effectively in writing as appropriate for the needs of the audience.
Reading Comprehension — Understanding written sentences and paragraphs in work related documents.
Active Learning — Understanding the implications of new information for both current and future problem-solving and decision-making.
Monitoring — Monitoring/Assessing performance of yourself, other individuals, or organizations to make improvements or take corrective action.

Abilities

Oral Comprehension — The ability to listen to and understand information and ideas presented through spoken words and sentences.
Oral Expression — The ability to communicate information and ideas in speaking so others will understand.
Speech Clarity — The ability to speak clearly so others can understand you.
Near Vision — The ability to see details at close range (within a few feet of the observer).
Inductive Reasoning — The ability to combine pieces of information to form general rules or conclusions (includes finding a relationship among seemingly unrelated events).
Deductive Reasoning — The ability to apply general rules to specific problems to produce answers that make sense.
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.
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).
Written Expression — The ability to communicate information and ideas in writing so others will understand.
Speech Recognition — The ability to identify and understand the speech of another person.

Work Activities

Documenting/Recording Information — Entering, transcribing, recording, storing, or maintaining information in written or electronic/magnetic form.
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.
Performing for or Working Directly with the Public — Performing for people or dealing directly with the public. This includes serving customers in restaurants and stores, and receiving clients or guests.
Identifying Objects, Actions, and Events — Identifying information by categorizing, estimating, recognizing differences or similarities, and detecting changes in circumstances or events.
Communicating with Supervisors, Peers, or Subordinates — Providing information to supervisors, co-workers, and subordinates by telephone, in written form, e-mail, or in person.
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.
Interacting With Computers — Using computers and computer systems (including hardware and software) to program, write software, set up functions, enter data, or process information.
Establishing and Maintaining Interpersonal Relationships — Developing constructive and cooperative working relationships with others, and maintaining them over time.
Processing Information — Compiling, coding, categorizing, calculating, tabulating, auditing, or verifying information or data.

Work Context

Telephone — How often do you have telephone conversations in this job?
Face-to-Face Discussions — How often do you have to have face-to-face discussions with individuals or teams 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?
Deal With External Customers — How important is it to work with external customers or the public in this job?
Impact of Decisions on Co-workers or Company Results — How do the decisions an employee makes impact the results of co-workers, clients or the company?
In an Enclosed Vehicle or Equipment — How often does this job require working in a closed vehicle or equipment (e.g., car)?
Importance of Being Exact or Accurate — How important is being very exact or highly accurate in performing this job?
Consequence of Error — How serious would the result usually be if the worker made a mistake that was not readily correctable?
Freedom to Make Decisions — How much decision making freedom, without supervision, does the job offer?
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?

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.
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.
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.
Social — Social occupations frequently involve working with, communicating with, and teaching people. These occupations often involve helping or providing service to others.
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.

Work Style

Integrity — Job requires being honest and ethical.
Stress Tolerance — Job requires accepting criticism and dealing calmly and effectively with high stress situations.
Self Control — Job requires maintaining composure, keeping emotions in check, controlling anger, and avoiding aggressive behavior, even in very difficult situations.
Attention to Detail — Job requires being careful about detail and thorough in completing work tasks.
Dependability — Job requires being reliable, responsible, and dependable, and fulfilling obligations.
Initiative — Job requires a willingness to take on responsibilities and challenges.
Persistence — Job requires persistence in the face of obstacles.
Cooperation — Job requires being pleasant with others on the job and displaying a good-natured, cooperative attitude.
Adaptability/Flexibility — Job requires being open to change (positive or negative) and to considerable variety in the workplace.
Concern for Others — Job requires being sensitive to others' needs and feelings and being understanding and helpful on the job.

Work Values

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.
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.
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.
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.
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

Lay Titles

National Wages and Employment Info


Median Wages (2008): $29.29 hourly, $60,910 annual.
Employment (2008): 104,480 employees