Regarding police investigative actions, analyze the following statements: I- They are usually carried out by police officers who are granted the au...

Regarding police investigative actions, analyze the following statements:
I- They are usually carried out by police officers who are granted the authority to investigate criminal offenses, generally with prior judicial authorization and concomitant judicial oversight;
II- They consist of activities carried out before the competent judge, and it is worth remembering that the judge who presides over the instruction must, at least in general, judge the case (CPP, art. 399, §2º);
III- They are carried out based on surprise, with the unknown of the investigated person(s);
IV- They are produced under the scrutiny of the adversarial system, with prior knowledge and participation of the parties;
V- If carried out in non-compliance with the typical model, their illegality must be recognized, with the consequent removal of the records from the process;
VI- If carried out in non-compliance with the typical model, they are sanctioned, in general, with absolute or relative nullity.

a) Only statements I, II, and III are correct.
b) Only statements II, III, and IV are correct.
c) Only statements III, IV, and V are correct.
d) Only statements IV, V, and VI are correct.
e) All statements are correct.