7.3 Punctuation, Capitalization, Quotation Rules & Possessives
Key Takeaways
- Commas separate introductory dependent clauses, coordinate adjectives, items in a series, and non-essential appositives, but must never split a subject from its verb or separate compound predicates.
- Semicolons link closely related independent clauses joined by conjunctive adverbs (however, furthermore, consequently), which must always be followed by a comma.
- Singular possessives add 's (the officer's notebook), while regular plural possessives add only an apostrophe (the officers' cruisers), strictly distinguishing possessives from contractions (its vs. it's, whose vs. who's, their vs. they're).
- Official police ranks (Constable, Detective, Staff Sergeant) are capitalized only when directly preceding a proper surname, remaining lowercase when used as generic occupational nouns.
- Direct dialogue transcription requires an introductory comma, capitalization of the quotation's initial word, and placement of periods and commas inside closing quotation marks.
Last updated: August 2026
7.3 Punctuation, Capitalization, Quotation Rules & Possessives
Executive Summary: On the Alberta Police Cognitive Ability Test (APCAT), punctuation and capitalization questions assess your precision in drafting official documentation. A single misplaced comma or apostrophe can alter the legal meaning of a statutory condition, change the ownership of seized evidence, or render a witness statement inadmissible. This section provides an exhaustive review of punctuation mechanics, possessive apostrophe rules, statutory capitalization, and dialogue transcription protocols.
Core Punctuation Standards in Law Enforcement Writing
┌─────────────────────────────────────────────────────────────────────────┐
│ PUNCTUATION HIERARCHY & USAGE │
├──────────────┬────────────────────────────┬─────────────────────────────┤
│ PUNCTUATION │ CORE GRAMMATICAL FUNCTION │ POLICE NARRATIVE EXAMPLE │
├──────────────┼────────────────────────────┼─────────────────────────────┤
│ Comma (,) │ • Introductory clauses │ "After securing the door, │
│ │ • Items in a series │ Constable Zhao called CAD." │
│ │ • Non-essential appositives│ "Detective Lee, the primary │
│ │ • Direct quote introduction│ investigator, took notes." │
├──────────────┼────────────────────────────┼─────────────────────────────┤
│ Semicolon (;)│ • Connects independent │ "The breath test was clear; │
│ │ clauses without FANBOYS │ however, the blood test was │
│ │ • Used before conjunctive │ positive." │
│ │ adverbs (; however,) │ │
├──────────────┼────────────────────────────┼─────────────────────────────┤
│ Colon (:) │ • Introduces formal lists │ "The officer seized three │
│ │ after a complete clause │ items: a pry bar, a torch, │
│ │ • Introduces formal quotes │ and a master key set." │
└──────────────┴────────────────────────────┴─────────────────────────────┘
The Comma Rules on the APCAT
- Introductory Dependent Clauses: When a sentence begins with a dependent clause or prepositional phrase of four or more words, place a comma before the main clause:
- Correct: "After conducting a search of the perimeter, Constable Davies located the discarded weapon."
- Non-Essential Appositives (Non-Restrictive Elements): Set off information with commas if removing it does not change the core identity of the noun:
- Non-Essential: "Constable Morrison, who joined the service in 2022, was the first officer on scene."
- Essential (No Commas): "All officers who fail to submit their duty logs by 0700 hours will be audited."
- Items in a Series (The Oxford Comma): Use clear serial commas in evidence logs to avoid item grouping ambiguity:
- Example: "The officer seized a digital scale, a box of plastic baggies, and $500 cash."
- The Coordinate Adjective Rule: Use a comma between two adjectives modifying the same noun if you can insert 'and' between them or reverse their order:
- Example: "The suspect operated a damaged, unregistered pickup truck."
Semicolons and Colons in Legal Syntactical Structures
Semicolon Mechanics
- Rule 1: Linking Independent Clauses. Use a semicolon to connect two closely related independent clauses when no coordinating conjunction (and, but, so) is present:
- Correct: "The first breath test registered a fail; the secondary instrument was not operational."
- Rule 2: Semicolon with Conjunctive Adverbs. When using conjunctive adverbs (however, furthermore, moreover, consequently, therefore, nevertheless, meanwhile):
- Structure:
[Independent Clause] ; [Conjunctive Adverb] , [Independent Clause] - Example: "The driver claimed he had consumed no alcohol; however, his breath sample registered 120 mg%."
- Structure:
- Rule 3: Complex Serial Lists. Use semicolons to separate items in a list when individual items already contain internal commas:
- Example: "The warrants were executed at 1420 8th Ave NW, Calgary; 10423 100th St, Edmonton; and 521 3rd Ave S, Lethbridge."
Colon Mechanics
A colon must only follow an independent clause (a complete grammatical sentence). Never place a colon directly after a verb or preposition:
- Flawed: "The items seized were: a knife, a phone, and a wallet."
- Correct: "Constable Chen seized three physical exhibits: a knife, a phone, and a wallet."
Possessive Apostrophes vs. Contractions
Apostrophe errors frequently occur on the APCAT. You must distinguish singular possessives, plural possessives, and possessive pronouns from contractions.
┌─────────────────────────────────────────────────────────────────────────┐
│ APOSTROPHE MECHANICS TAXONOMY │
├──────────────────────────┬──────────────────────────────────────────────┤
│ CATEGORY │ FORMATION RULE & EXAMPLES │
├──────────────────────────┼──────────────────────────────────────────────┤
│ Singular Possessive │ Add 's to any singular noun. │
│ │ • The officer's notebook (one officer) │
│ │ • The suspect's vehicle (one suspect) │
│ │ • The witness's statement (one witness) │
├──────────────────────────┼──────────────────────────────────────────────┤
│ Regular Plural Possessive│ Add ONLY an apostrophe after the plural 's'. │
│ │ • The officers' lockers (multiple officers) │
│ │ • The suspects' footprints (multiple suspects)│
│ │ • The witnesses' addresses (multiple witnesses)│
├──────────────────────────┼──────────────────────────────────────────────┤
│ Irregular Plural │ Add 's because the plural does not end in 's'│
│ Possessive │ • The men's clothing / The women's lockers │
│ │ • The children's testimony │
├──────────────────────────┼──────────────────────────────────────────────┤
│ Possessive Pronouns │ Possessive pronouns NEVER take apostrophes! │
│ (No Apostrophe) │ • its (possessive) vs. it's (it is / has) │
│ │ • whose (possessive) vs. who's (who is) │
│ │ • their (possessive) vs. they're (they are) │
│ │ • your (possessive) vs. you're (you are) │
└──────────────────────────┴──────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────────────┐
│ POSSESSIVE PRONOUN AUDIT TABLE │
├──────────────┬────────────────────────────┬─────────────────────────────┤
│ PRONOUN FORM │ MEANING & FUNCTION │ APPLICATION IN POLICE REPORT│
├──────────────┼────────────────────────────┼─────────────────────────────┤
│ its │ Possessive pronoun │ "The cruiser lost its tire."│
│ it's │ Contraction of 'it is/has' │ "It's clear the door broke."│
├──────────────┼────────────────────────────┼─────────────────────────────┤
│ whose │ Possessive pronoun │ "The driver whose car spun."│
│ who's │ Contraction of 'who is' │ "The officer who's on duty."│
├──────────────┼────────────────────────────┼─────────────────────────────┤
│ their │ Possessive pronoun │ "The witnesses gave their..."│
│ they're │ Contraction of 'they are' │ "They're inside the house." │
│ there │ Adverb indicating location │ "The weapon was found there."│
└──────────────┴────────────────────────────┴─────────────────────────────┘
Capitalization Rules for Law Enforcement Records
Capitalization on the APCAT is governed by standard formal Canadian legal conventions:
┌─────────────────────────────────────────────────────────────────────────┐
│ LEGAL CAPITALIZATION DIRECTIVES │
├──────────────────────────┬──────────────────────────────────────────────┤
│ CATEGORY │ CAPITALIZED VS. LOWERCASE EXAMPLES │
├──────────────────────────┼──────────────────────────────────────────────┤
│ 1. Police Ranks │ Capitalized ONLY before a proper name: │
│ │ • Constable Smith, Detective Sergeant Tremblay│
│ │ Lowercase when generic or after 'the': │
│ │ • "The constable arrived on scene." │
│ │ • "A detective was assigned to the file." │
├──────────────────────────┼──────────────────────────────────────────────┤
│ 2. Statutes & Acts │ Capitalized as proper statutory titles: │
│ │ • Criminal Code, Traffic Safety Act │
│ │ • Controlled Drugs and Substances Act │
│ │ • Charter of Rights and Freedoms │
│ │ Lowercase generic references: │
│ │ • "a federal statute," "provincial act" │
├──────────────────────────┼──────────────────────────────────────────────┤
│ 3. Specific Geographic │ Capitalized for official regions / streets: │
│ Names & Quadrants │ • Northwest Calgary, Jasper Avenue, Route 2 │
│ │ Lowercase for generic compass directions: │
│ │ • "The suspect fled north on 4th Street." │
├──────────────────────────┼──────────────────────────────────────────────┤
│ 4. Official Agency Names │ Capitalized for specific institutions: │
│ │ • Edmonton Police Service, Calgary Police │
│ │ Service, Royal Canadian Mounted Police │
│ │ • Provincial Court of Alberta │
└──────────────────────────┴──────────────────────────────────────────────┘
Direct Dialogue & Statement Transcription Protocols
When transcribing verbal witness statements, admissions, or suspect warnings, follow these four punctuation rules:
- Comma Before Opening Quote: Place a comma immediately following the introductory attribution verb (stated, shouted, asked):
- Example:
Constable Patel asked, "What did the suspect look like?"
- Example:
- Capitalize the First Word: Capitalize the first letter of a complete quoted sentence inside the quotation marks:
- Example:
The witness replied, "He was wearing a black hoodie."
- Example:
- Periods and Commas Inside Quotes: In Canadian legal writing, terminal commas and periods are placed inside the closing quotation marks:
- Example:
"I dropped the knife on the sidewalk," stated the accused.
- Example:
- Interrupted Dialogue Quotations: If an attribution phrase interrupts a single continuous sentence, use commas on both sides and lowercase the continuation:
- Example:
"I saw the collision," stated the clerk, "and the blue car ran the red light."
- Example:
Test Your Knowledge
A recruit constable is drafting an evidence property log following the execution of a search warrant at a commercial warehouse. Which of the following sentences uses apostrophes correctly according to formal Canadian legal writing standards?
A
B
C
D
Test Your Knowledge
An officer is preparing a court disclosure package for an indictable prosecution in Edmonton. Which of the following sentences adheres strictly to Canadian capitalization standards for law enforcement records?
A
B
C
D
Test Your Knowledge
Which of the following sentences demonstrates the correct punctuation structure when using a conjunctive adverb to connect two independent clauses in a police narrative?
A
B
C
D
Test Your Knowledge
An investigator is transcribing a spontaneous utterance from a witness during an armed robbery investigation. Which option displays the correct punctuation and quotation mechanics for official witness transcription?
A
B
C
D