Parallel construction is a term that can refer to both grammar and law enforcement practices. In grammar, it means using the same pattern of words to show that two or more ideas have the same level of importance. In law enforcement, it refers to a controversial investigative technique.
In grammar, parallel construction means using the same grammatical structure for similar elements within a sentence. This helps make writing clearer and more effective. For example, when listing actions, all verbs should be in the same form.
Here is an example of parallel construction: “She likes reading, writing, and jogging.” Each activity is presented in the same verb form, making the sentence balanced and easy to read.
In law enforcement, parallel construction is the process of creating a separate, legal evidentiary basis for an investigation to conceal how the investigation actually began. This often happens when law enforcement agencies use classified or otherwise inadmissible information to start an investigation, then find other ways to obtain the same evidence so it can be used in court.
Parallel construction is considered legal because, in theory, the evidence presented in court is obtained through lawful means, even if the initial tip or lead came from a source that could not be disclosed or used in court. Critics argue that this practice can undermine defendants’ rights, but courts have generally upheld its legality as long as the evidence introduced is lawfully obtained.
A parallel financial investigation is a law enforcement technique where financial records and transactions are examined alongside a primary criminal investigation. This approach is often used to uncover money laundering, fraud, or other financial crimes that may be connected to the main case.
Parallel construction has been criticized by civil liberties advocates who argue that it can hide the true origins of evidence and prevent defendants from challenging how evidence was obtained. Supporters claim it is necessary to protect sensitive sources and methods.