Experimental Design and criminal invastigation Flashcards
What is an independent variable?
a variable that stands alone and isn’t changed by the other variables you are trying to measure
what is a dependent variable?
the variable that changes as a result of the independent variable manipulation.
What is a control variable?
the one that the researcher holds constant or controls.
what is the experimental group?
the group in an experiment that receives the variable being tested.
what is the control group?
serves as a comparison group for the treatments.
What is a police officers role?
To secure the scene and check for any evidence
what is the role of an EMT
Provide treatment, such as first aid or life support care, to sick or injured patients.
What is the role of a CSI
document the crime scene and collect any evidence,pichures, hair,thumb prints
what is the role of a forensic scientist
provides the criminal justice system with evidence that could be used to convict a suspect even when an eyewitness is not present.
what is the role of a medical examiner
Evaluate bodies and crime scene photographs, toxicology reports and medical evidence to determine the probable cause of death.
what is the role of detectives
Detectives have the legal jurisdiction to arrest criminals or suspects
what is the role of a prosecuter
prepares any investigative subpoenas or search warrants and, if appropriate, files charges on cases investigated while on duty.
what is the role of a defense
represent and protect the rights of the defendant (suspect or accused).
What mistakes could be made during a criminal investigation
-Fabricating or exaggerating the evidence against a suspect to obtain a search or arrest warrant.
-Not specifically stating the items to be seized in a search warrant.
-Searching for or seizing evidence not specified in the warrant.
