IL State Trooper key terms
IL State Trooper · Get comfortable with the vocabulary.
- Inference
- Related: Main Idea, Supporting Detail, Author's Purpose
A conclusion drawn from evidence and reasoning rather than stated outright. On reading passages, you must support each inference with specific details from the text, not personal opinion.
- Main Idea
- Related: Inference, Supporting Detail, Summary
The central point a passage or paragraph is built to convey. It is broader than any single detail and usually can be restated in one sentence.
- Supporting Detail
- Related: Main Idea, Inference
A fact, example, statistic, or description that explains, proves, or illustrates the main idea. Details answer who, what, when, where, or how much.
- Author's Purpose
- Related: Tone, Inference
The reason a writer produced a text, such as to inform, persuade, entertain, or instruct. Purpose shapes tone, structure, and the kinds of evidence included.
- Tone
- Related: Author's Purpose, Connotation
The writer's attitude toward the subject, revealed through word choice and sentence structure. Tone may be neutral, urgent, critical, sympathetic, or formal.
- Summary
- Related: Main Idea, Paraphrase
A brief restatement of a text's key points in your own words, omitting minor details and examples. A good summary preserves the original meaning without adding opinion.
- Paraphrase
- Related: Summary, Plagiarism
Restating a passage's meaning using different words while keeping the original sense. Paraphrasing demonstrates comprehension and avoids copying source wording.
- Subject-Verb Agreement
- Related: Pronoun-Antecedent Agreement, Collective Noun
The rule that a verb must match its subject in number: singular subjects take singular verbs and plural subjects take plural verbs, even when intervening phrases obscure the subject.
- Pronoun-Antecedent Agreement
- Related: Subject-Verb Agreement, Ambiguity
The requirement that a pronoun match the noun it refers to in number and gender. Ambiguous or mismatched references confuse readers and weaken reports.
- Dangling Modifier
- Related: Misplaced Modifier, Ambiguity
A descriptive phrase that does not clearly attach to the word it is meant to describe, often because the intended subject is missing from the main clause.
- Misplaced Modifier
- Related: Dangling Modifier, Ambiguity
A word or phrase placed too far from the term it modifies, creating a misleading or unintended meaning in a sentence.
- Active Voice
- Related: Passive Voice, Report Writing
Sentence construction in which the subject performs the action, as in 'The officer secured the scene.' Active voice is direct and preferred in law enforcement reports.
- Passive Voice
- Related: Active Voice, Report Writing
Construction in which the subject receives the action, as in 'The scene was secured.' It obscures who acted and is usually avoided in incident reports.
- Connotation
- Related: Denotation, Tone
The implied or emotional meaning a word carries beyond its literal definition. Word choice affects how readers perceive an incident or a person described.
- Denotation
- Related: Connotation, Precision
The literal, dictionary meaning of a word, separate from emotional associations. Precise denotation matters in legal and report writing.
- Homophone
- Related: Spelling Accuracy
One of two or more words that sound alike but differ in spelling and meaning, such as 'their' and 'there' or 'cite' and 'site'.
- Synonym
- Related: Antonym, Connotation
A word with a meaning close to another word's meaning. Synonyms are rarely identical in shade of meaning, so context determines the best choice.
- Antonym
- Related: Synonym, Context Clue
A word opposite in meaning to another word, such as 'guilty' and 'innocent'. Antonym questions test whether you understand a word's core sense.
- Context Clue
- Related: Antonym, Inference
Information in surrounding text that helps you infer an unfamiliar word's meaning, including examples, contrasts, definitions, and restatements.
- Ratio
- Related: Proportion, Percentage
A comparison of two quantities by division, often written as a fraction or with a colon. Ratios scale both quantities by the same factor.
- Proportion
- Related: Ratio, Rate
An equation stating that two ratios are equal. Proportions are solved by cross-multiplication and are used for scaling distances, speeds, and staffing.
- Rate
- Related: Proportion, Average
A ratio comparing quantities with different units, such as miles per hour or calls per shift. Units must be consistent before you compute.
- Percentage
- Related: Ratio, Average
A number expressed as a fraction of 100. Percent change equals the difference divided by the original amount, then multiplied by 100.
- Average (Mean)
- Related: Median, Rate
The sum of a set of values divided by the number of values. The mean is sensitive to extreme values, unlike the median.
- Median
- Related: Average (Mean), Outlier
The middle value of an ordered data set, or the average of the two middle values when the count is even. It is less affected by outliers than the mean.
- Outlier
- Related: Median, Average (Mean)
A data point far from the rest of the values in a set. Outliers can distort a mean and should prompt you to check for recording errors.
- Deductive Reasoning
- Related: Inductive Reasoning, Premise
Reasoning from general rules to a specific conclusion. If the premises are true and the logic is valid, the conclusion must be true.
- Inductive Reasoning
- Related: Deductive Reasoning, Pattern Recognition
Reasoning from specific observations to a general conclusion. Inductive conclusions are probable rather than certain, since unseen cases may differ.
- Premise
- Related: Deductive Reasoning, Assumption
A statement offered as evidence or a starting assumption in an argument. Evaluating an argument requires checking whether its premises are true and relevant.
- Assumption
- Related: Premise, Deductive Reasoning
An unstated belief an argument depends on. Identifying hidden assumptions is a common way to test whether reasoning holds up.
- Pattern Recognition
- Related: Inductive Reasoning, Sequence
Identifying a rule or regularity in a sequence of numbers, shapes, or events so the next element can be predicted. Common patterns include arithmetic and geometric progressions.
- Sequence
- Related: Pattern Recognition
An ordered list of numbers or symbols governed by a rule. Finding the rule usually requires comparing consecutive differences, ratios, or alternating sub-patterns.
- Observation
- Related: Recall, Attention to Detail
The act of noticing and mentally recording specific details about people, objects, and surroundings. Accurate observation is the foundation of reliable reports and witness accounts.
- Recall
- Related: Observation, Recognition
Retrieving previously observed or learned information from memory without cues. Recall is strengthened by organized encoding and weakened by stress and distraction.
- Recognition
- Related: Recall, Observation
Identifying something as previously seen when it is presented again, as in a lineup or photo array. Recognition is generally easier than free recall.
- Attention to Detail
- Related: Observation, Recall
The ability to focus on small but significant features, such as a license plate character, clothing color, or the order of events, while ignoring distractions.
- Situational Awareness
- Related: Observation, Decision Making
Continuous perception of what is happening around you and how it may affect safety. It involves noticing changes, anticipating risks, and adjusting plans accordingly.
- Decision Making
- Related: Situational Awareness, Discretion
Choosing among options under time pressure and uncertainty. Sound decisions weigh available facts, policy, risk, and consequences before acting.
- Discretion
- Related: Decision Making, Ethics
The lawful authority to choose among reasonable courses of action within policy limits. Discretion must be exercised consistently and without bias.
- De-escalation
- Related: Situational Awareness, Discretion
Techniques that reduce tension and the likelihood of force, such as calm communication, time, distance, and positioning. The goal is voluntary compliance and safety for everyone.
- Ethics
- Related: Integrity, Discretion
Principles guiding right conduct, including honesty, fairness, and respect for lawful authority. Ethical conduct is required even when no one is watching.
- Integrity
- Related: Ethics, Accountability
Consistency between stated values and actual behavior, especially under pressure or temptation. Integrity includes refusing to lie, steal, or cover up misconduct.
- Accountability
- Related: Integrity, Chain of Custody
Accepting responsibility for your actions and their consequences, including reporting your own mistakes promptly and truthfully.
- Conflict of Interest
- Related: Ethics, Integrity
A situation in which personal interests could improperly influence official duties. It must be disclosed and avoided, not merely managed quietly.
- Active Listening
- Related: Empathy, De-escalation
Fully concentrating on a speaker, reflecting back what you heard, and asking clarifying questions. It builds trust and reduces misunderstandings during interviews.
- Empathy
- Related: Active Listening, De-escalation
Understanding and acknowledging another person's feelings without necessarily agreeing with them. Empathy aids communication and can calm tense encounters.
- Chain of Custody
- Related: Evidence, Accountability
The documented record of who handled evidence, when, and where, from collection through disposition. Gaps in the chain can undermine a case in court.
- Evidence
- Related: Chain of Custody, Report Writing
Any item, statement, or observation that tends to prove or disprove a fact in question. Evidence must be lawfully obtained, documented, and preserved.
- Report Writing
- Related: Active Voice, Chronological Order
Producing clear, factual, chronological narratives that record what happened, who was involved, and what actions were taken. Reports use plain language, active voice, and precise detail.
- Chronological Order
- Related: Report Writing, Precision
Arranging events in the order they occurred. Incident narratives typically follow a timeline so readers can follow the sequence without confusion.
- Precision
- Related: Report Writing, Denotation
Using exact, specific wording rather than vague terms. In reports, precision means stating times, locations, and descriptions concretely instead of using words like 'later' or 'nearby'.
- Physical Agility
- Related: Cardiovascular Endurance, Muscular Endurance
The ability to change body position and direction quickly while maintaining control. Agility tests often involve running, turning, and obstacle courses under time limits.
- Cardiovascular Endurance
- Related: Physical Agility, Muscular Endurance
The capacity of the heart and lungs to supply oxygen during sustained activity. It is commonly assessed by timed runs or distance tests.
- Muscular Endurance
- Related: Cardiovascular Endurance, Physical Agility
The ability of a muscle group to perform repeated contractions over time, such as push-ups or sit-ups within a set period.