Facts
Scientific knowledge is based on empirical evidence gathered through scientific experimentation and investigations
In certain cases in could but in a general term no it cannot, poorly collected evidence could contaminate it or even if obtained wrong could be thrown out and not be used as evidence that is why there are procedures to be followed.
Preliminary investigations typically involve securing the scene, gathering initial evidence, and collecting testimonies from witnesses to establish the facts. Investigators then assess the situation to determine the scope and direction of the inquiry. Follow-up investigations focus on analyzing collected evidence, conducting further interviews, and employing forensic techniques to build a comprehensive case. Throughout both stages, documentation and maintaining a clear chain of custody for evidence are crucial for legal processes.
1. so that your body grease etc does not contaminate the experiment, or the evidence 2. so that the chemicals do not injure your skin.
"Contaminate" is not an adjective that applies to verbally given testimony or written statements. It is applied to physical evidence of the type usually found at a crime scene or seized later in support of the investigation.
"In legal contexts, the term 'without prejudice' means that any statements or offers made during negotiations cannot be used as evidence in court proceedings."
There are literally hundreds of textbooks written on this subject. A question this broad cannot be answered in this venue.
i have contaminate the food by putting my dirty hand on the food.
No, biased statements are not supported by evidence.
three tools criminalinvestigation
Investigations of what? The best response to this question I can provide is that they follow the evidence.
Physical evidence such as DNA, fingerprints, and weapons. Witness statements from individuals who may have information or have seen the crime occur. Digital evidence such as surveillance footage, phone records, and electronic communication data.
Evidence Collection
As of my last update, there isn't definitive evidence to label former Brazilian President Luiz Inácio Lula da Silva as prejudice. His rhetoric and actions have been a mix of progressive and controversial, with some accusations of corruption and alliances with divisive figures. It's important to examine his statements and policies in context to form an informed opinion on his stance on prejudice.
prejudice applies to excluding a person of their abilities or judging someone without evidence
Most statements made by counsel can be considered by jurors as evidence. In some cases, the judge will instruct you whether you should listen and consider this as evidence or not.