ντετεκτιβ, What is the thump rules used by Police to catch criminals?
Updated: Aug 23
The Crime Scene
As soon as the police receive a call that a crime has been committed or is in progress, ντετεκτιβ, they send officers to the scene. The officers may be able to catch the criminal right on the scene. The officers will then arrest this person and take them to the police station or the county jail for booking.
However, even if the police caught the perpetrator red-handed, they will still collect evidence at the scene of the crime to support a criminal sentence. This evidence collection will include interviewing all of the potential witnesses at the scene. A site investigation will also be conducted, which may include taking pictures, measurements, taking forensic evidence, making general observations, and taking objects that may be connected to the crime.
At all times, the police and their employees must obey the Fourth Amendment's rules for permissible search and seizure. This means, generally, that if the police want to search any private property, they must first obtain a warrant or have probable cause that would allow a search without a warrant. Ντετεκτιβ.
When the police officers conduct interviews, ντετεκτιβ, they're looking to establish the facts of the case, trying to figure out what happened and who might be responsible. Often, they'll interview witnesses separately so that they can have each person's individual recollection of the events.
The police will want to talk to people who have personal knowledge of the crime. In order to have personal knowledge, the witness needed to have seen, heard, smelled, tasted, or touched something first hand. The police will carefully document these witness statements along with the police officer's observations about the witness, so that the information will be available to future police officers, detectives, and prosecutors.
Law Enforcement Observations
A key component of any criminal investigation is the observations of the police officers. Police officers are trained to observe and notice details. Ντετεκτιβ, They will note the position of weapons, blood stains, clothing, weather and any other detail that might explain the crime or the criminal behavior.
Physical and Forensic Evidence
The police will also collect physical evidence at the crime scene. This may include taking photographs, measurements, fingerprints, blood samples, and taking any objects that may be related to the crime. Each bit of evidence must then be properly recorded and documented. Physical items will be collected using gloves to preserve fingerprints and to limit contamination. If the crime warrants it, forensic evidence, ντετεκτιβ, like fingerprints, blood, or saliva found at the scene will be gathered and sent to labs for analysis.
The evidence items will be placed in a special bag that will be properly marked so it can be identified later. The chain of custody for each piece of evidence will be established starting with the person who collected it and then each transfer of that evidence will be documented to establish an unbroken chain from the time of collection to presentation at trial.
The go to tool for most criminal investigations is the interrogation of suspects with the intention to trying to get a confession. While, forensic evidence receives lots of attention and is a valuable weapon in the war on crime, it is expensive and time consuming. An interrogation will often result in results much faster and certainly much cheaper.
Police officers and detectives are skilled interrogators. They have studied human behavior and body language. Interrogation is a science. Detectives know how to gain a suspect's trust and how to manipulate them into a confession. While the police must not violate a person's Miranda and constitutional rights in order to obtain a confession, they are still allowed a lot of latitude. For instance, the police can lie to a suspect. They also can engage in subterfuge or trick a suspect.
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