Is an involuntary statement obtained by a law enforcement officer from a criminal suspect by coercion in a criminal proceeding?

Is a statement obtained by a police officer from a criminal suspect involuntary? (California, United States of America)

What is the current state of the law on involuntary statements obtained by a police officer from a suspect? (California, United States of America)

Can a police officer who poses as an undercover officer to obtain a false confession be allowed to testify in a criminal case? (California, United States of America)

What is the effect of prior criminal convictions on evidence of criminal activity in criminal proceedings? (California, United States of America)

When will a prosecution attorney's unawareness of a booking officer's statement to the booking officer be considered relevant to whether there is a violation of the Criminal Code Act? (California, United States of America)

What is the test for determining whether a statement made by a police officer to a suspect is involuntary? (California, United States of America)

Can a defendant who claims self-defense to a charge of battery upon a police officer, who is also charged with battery upon the officer, obtain materials from the police department concerning the propensity for violence against the officer? (California, United States of America)

Is a search warrant based solely upon a statement of opinion by an officer concerning a defendant's suspected criminal activity? (California, United States of America)

Is a confession obtained by a police officer from a criminal suspect voluntary? (California, United States of America)

Is there a consequence that if a gang member is convicted of a criminal offence by virtue of his or her actions, such that the crime proceeds to a criminal enterprise and the criminal damage caused by the crime? (California, United States of America)