I wrote this post in 2021 in another blog, and all these variables appear in the book Elements of Crime Patterns, along with others, in a different format.
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I wrote this post in 2021 in another blog, and all these variables appear in the book Elements of Crime Patterns, along with others, in a different format.
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If you are a new analyst, you might take it personally when you go over a select group of crimes and find no patterns, or analyze a set of phone or bank records in an investigation and see nothing that is of value.
This is normal. But no one tells you that!
Analysts spend a great deal of time filtering through various forms of data looking for information that will be of value, and often they can spend hours, days, even weeks analyzing with no result.
It's not necessarily you!
Yes, if you are a crime analyst, you should spot patterns in high volumes of robberies and burglaries, because there are likely repeat offenders committing more than one crime. But in a small jurisdictions, patterns are less frequent than in a large metropolitan area. That is normal.
Unfortunately, often you won't know if you missed patterns; sometimes you will find out when others find them ahead of you. That is normal, too.
If you are an intelligence or investigative analyst, you may often have a multitude of records to sift through. There is never a guarantee that you will find clues that can lead to arrest and prosecution.
Once I worked through thousands of records for four months and it resulted in nothing. Our job is to dig.
If you find nothing when nothing is there, you are doing a great job!
"The lack of buy in from frontline personnel, who are mainly responsible for data entry, poses a significant question as to how well police are committed to data-driven policing and the necessary data collection tasks. Having high quality data entered into police data management systems has profound implications for the subsequent data analyses and decisions police make based on analytical work."
The quote above is from the Police Journal paper Thinking about police data: Analysts’ perceptions of data quality in Canadian policing, available at this link. So true!
Data quality is such a huge issue for analysts - it affects everything you do. The problems of getting data WORTH analyzing is significant. Frontline personnel are not simply data entry clerks - they are often police officers who are in a rush to go to their next calls. How can they be convinced to gather information that is important to policing?
I think a common understanding of data is needed - reasons to collect quality data have to be articulated so that make sense to ALL of the stakeholders. That has not been done. There must be the will to do it if we are to have the data needed to improve public safety.
All officers KNOW what a crime series is and they themselves can often recognize them if they are the collectors of such a pattern, but it is not their job to identify them. We need to create a shared understanding of the value and role of information in the future of policing.
This is why I wrote Elements of Crime Patterns. It is a beginning step.
Most often, we safely assume crimes in a serial crime pattern generally are of the same type. A robber commits another robbery. A burglar commits another burglary. You get the picture.
There may be the unusual series of crime where the crimes in a series do not fall under the same crime type umbrella. A robber becomes a rapist. A car thief becomes a burglar.
Then there are the attempted crimes that can fall out of the series crime pattern identification search radar. Examples include a robber following a target without being able to carry out the robbery, resulting in a suspicious person 911 call, or a burglar trying to break in unsuccessfully whose behaviors result in a reported criminal mischief (damage to property by breaking a lock or window). Anyone looking for more information in a series of crimes must consider looking outside standard assumption that serial criminals always commit the same crimes.
Crimes occur in context. A serial robber may strike after the bars close in a downtown area. A serial burglar make strike when families are at relatives’ funerals and homes are left unattended. A serial rapist make hunt for individuals on online dating sites. Some variables are unlikely to appear in crime reports.
A number of crimes go unreported. The victims’ trust of law enforcement, the perception of whether or not the reporting of the crime is worth the effort or not, the willingness of officers’ to take a report and fill it out completely – these things must be considered when a crime series pattern has been identified.
You want to fill in as many blanks as possible once you see that two or more crimes may be related. What might you be missing? What reports and files can you review? Who do you need to talk to?
Two examples out of thirteen in the Victim Vulnerabilities from Chapter Seven:
Cultural vulnerabilities:
Example of content in the Theft of and from Vehicles Chapter 34:
While researching the book, I found some good, basic crime-pattern-related resources on the Dallas Police Department website.
Here is an example:
Suspicious Activity & Behaviors Indicators - Burglary
Residential burglaries literally hit close to home. There is almost nothing more personal than having your home, and your privacy, invaded by a criminal.
Behavior that may indicate a burglary or burglary in progress.
There are a few more criminal activity types on the site - and while these indicators are general, it is important to educate the community as a means of preventing some crimes from happening in the first place.
Some of the burglary behaviors may show up in suspicious person reports that may then later be linked to an actual serial burglary pattern.
One example out of fifteen in the Location Chapter 22:
Examples of crimes at transportation hubs:
Example of content in the Firearm Trafficking Chapter 50:
Firearm Trafficking MO Variables
Sourcing and Procurement
Storage and Staging
Transportation
Sales and Distribution
Support and Protection
Adaptability and Scaling
There are 26 other crime categories in the book Elements of Crime Patterns.
Sometimes offenders gain the trust of victims through means of deception. They use disguises to avoid identification. Deception and disguis...