1. Lesson 02: Documentation
(Chapter 2 of Bennett/Hess text)
2. Overview
n
Documentation
of a criminal investigation is one of the most important aspects of the process
n
Documentation
can be done through…
n Notes
n Sketches
n Photographs/video
3. Field Notes
n
Investigative
notes are a permanent written record of the facts of a case to be used in further investigation, in writing reports, and in
prosecuting the case
n Start taking notes as soon as possible after receiving a call to respond
n Record all information that helps to answer the questions: Who? What? Where?
How? Why?
n Include everything an investigator does in an official capacity, from start to finish.
n Include all facts, not matter where they might lead.
n Use a notebook. A tape recorder does not replace a notebook.
4. Importance of Field Notes
n
Field notes
are more reliable than an officer’s memory
n
Field notes
are the primary information source for the police report
n
Detailed field
notes may reduce the need to re-contact the parties involved
n
Field notes
can be used to defend the integrity of the police report
5. Effective Field Notes
n
Notes should
describe the scene and the events well enough to enable a prosecutor, judge, or jury to visualize them. The basics…
n Record facts accurately.
n Be as specific as possible.
n Take enough time to write legibly and clearly.
n Notes need to be well organized.
n Do not include things in the notes that are not a part of the investigation (friend’s phone number, grocery list,
etc.)
6. Photographs and Video
n
Photographs
and video are important for reproducing the crime scene in detail for presentation to the prosecution, defense, witnesses,
judge and jury in court. They are used in investigating, prosecuting and police training.
n
They do not
replace the need for a crime scene sketch.
7. Photographs
n
Advantages
n
They can be
taken immediately
n
Accurately depict
the crime scene and evidence
n
Create interest
n
Increase attention
to testimony
n
Disadvantages
n
Not selective
n
Do not show
actual distances
n
May be distorted
n
Mechanical errors
in shooting or processing
8. Tip: Move From The General To The Specific
n
Take long range,
exterior, overall photographs first.
n Take medium range photographs next.
n
Take close range
photographs last.
9. More Tips…
n
Take a sufficient
number to reconstruct entire scene.
n
Overlap photographs.
n
Photograph all
doors and exits
n
Photograph lines
of approach and flight, if known
10. And More Tips…
n
Keep a photographic
log
n
Be careful not
to disturb evidence.
n
Take at least
two shots of each items of evidence. One- of the item of evidence by itself. One- with a marker to reflect size.
11. And Finally….
n
If something
was moved before you arrived, don't try to reconstruct the scene as it was.
n
The photographs
should show the scene as you found it.
12. Immersive Imaging
n
A type of computer
software that stitches together digital photos of 180 degrees or more to create one 360 degree photo
13. Types of Investigative Photography
n
Crime Scene
n
Surveillance
n
Aerial
n
Night
n
Laboratory
n
Line-up
n
Mug shot
14. Photograph Terminology
n
Material
Photography---relates
to a specific case and subject
n
Relevant
Photograph---helps explain
testimony
n
Competent
photography---accurately
represents what it purports to represent
15. Photography Equipment
n
35 mm camera
n
Video recorder
n
Digital camera
n
Tripod
n
Scales, markers,
and/or rulers
n
Supplemental
lighting
16. Crime Scene Sketches
n
Accurately portrays
the facts
n
Relates to the
sequence of events at the scene
n
Establishes
the precise location and relationship of objects and evidence
n
Helps create
a mental picture of the scene
n
Is a permanent
record of the scene
n
Is usually admissible
in court
17. Sketching
Purposes
n
Assists in interviews
and interrogations.
n
Assists in preparing
the investigative report.
n
Assists in presenting
the case in court.
Process
Observe and plan
¯
Measure distances
¯
Outline the area
¯
Locate objects
and evidence within the outline
¯
Record details
¯
Complete a finished
sketch (with legend)
18. Plotting Methods
n
Rectangular-coordinate
method---locates objects
by using adjacent walls as fixed points of reference at right angles
n
Baseline
method---establishes a
straight line from one fixed point to another, from which measurements are taken at right angles
n Triangulation method---uses straight-line measurements from two fixed objects to the evidence to create a triangle with the evidence
in the angle formed by the straight lines
n
Rough Sketches
19. Rough sketches:
n
Are pencil (or
pen) drawn at the scene,
n
Usually not
drawn to scale but distances are measured and entered
n
Final Sketches
20. Final sketches:
n
Are based on
the rough sketch
n
Are completed
by an investigator or drafter at a later time
n
Shows the precise
distance and location of objects in question
n
Sometimes called
finished scaled drawings (if the sketch is drawn to scale)
1. Lesson 02: Documentation
(Chapter 03 of Bennett/Hess text)
2. Report Writing
nAlmost everything that a police officer does must be reduced
to writing
nReports are permanent written records of important facts
of a case to be used in the future
nGood reports begin with good field notes
nAn officer’s or detective’s credibility and reputation
can be negatively impacted by his/her inability to write effective reports
3. Uses of Police Reports
nExamine the past
nKeep other officers informed
nContinue investigations
nPrepare court cases
nProvide court with relevant facts
nCoordinate law enforcement activities
nPlan for future law enforcement services
nEvaluate performance of officer/department
nRefresh witness or officer’s memory
nCompile crime statistics
nProvide information to insurance investigators
4. Reports are read by….
nOther officers, supervisors, attorneys, judges, jurors, city
officials, insurance investigators, citizens, and reporters!
nAn officer’s or detective’s credibility and reputation
can be destroyed by his/her inability to write effective reports
5. Common Types
n Two common types of police reports:
nIncident report: Initial official police report documenting
crimes and other reported incidents that are usually written from the field notes.
nSupplemental report: Official police report that is necessary
for the purpose of keeping an investigative file or case current as new or corrected information is gathered. These are also
usually written from field notes.
6. Incident Report
nThe incident report may also be referred to by a variety
of other names. The names vary by police agency. Some examples include:
nOffense report
nCrime report
nUniform offense report
nPreliminary investigative report
7. Incident Report
They generally provide information regarding:
n
Suspects: Additional
information about suspects.
n
Witnesses: Information
from witnesses, including their descriptions of events and things as they experienced them through their four senses.
n
Evidence: The
evidence seized or collected, how it was marked, the chain of custody, and numbers assigned by the property or evidence control
room is recorded.
n
Interviews:
All persons with whom the investigator talked during the course of the inquiry should be identified, even if they could not
provide information at the initial contact.
n
Investigation:
A short description of the crime scene may be given to permit a basic conceptualization of it by persons to whom it is unfamiliar.
n
Reconstruction:
The reconstruction is a narration of the probable manner in which the crime was committed, based on interviews, evidence and
examination of the scene.
8. Incident Report
nCommon disposition of incident reports:
nRetained for further investigation (open)
nUnfounded
nInactive
nReferred to other divisions for follow up
9. Supplemental Reports
nThe supplemental report may also be referred to by a variety
of other names. The names vary by police agency. Some examples include:
n Follow-up report
n Follow-up investigative report
n Investigative report
10. Supplemental Reports
Supplemental or follow up reports should:
nBe in chronological order beginning with a paragraph of date,
time, type of offense, and how you became involved
nRecord what witnesses, victims, suspects, others say.
nRecord all actions taken.
nClose with the disposition of the case.
11. Common Problems in Police Reports
nConfusing or unclear sentences
nConclusions, assumption, and opinions
nWordiness and overuse of police jargon
nMissing/incomplete information
nMisspelled words and grammatical errors
nReferring to ‘above’ information
12. Characteristics of Effective Reports
nUse short paragraphs with one subject per paragraph.
nUse the past tense.
nUse the first person to refer to yourself.
nObjective. Avoid giving opinions/conclusions.
nConcise.
nUse clear sentences.
nGrammatically and mechanically correct.
nLegible.
nReader friendly. (Consider who will read the report.)
13. Purpose
nThe basic purpose of an investigative report is to record
the facts…..
nFact- a statement that can be proven (true or false!)
nInference- a conclusion based on reasoning
nOpinion- a personal belief
nReports must also be objective, which means being
non-opinionated, fair, and impartial