LEAB Deductive and Inductive Reasoning 2

Question 1

All robbery suspects must be interviewed before being released. Jones is a robbery suspect. Which conclusion is MOST logically supported?

Accepted Answer

Jones must be interviewed before being released

Answer

The universal rule applies to all members of the category, and Jones belongs to that category, so the rule applies directly to him.

Question 2

If a building has been broken into, at least one point of entry will show signs of forced access. Investigators found no signs of forced access at the warehouse. What can be concluded?

Accepted Answer

The warehouse was not broken into

Answer

The contrapositive of 'if break-in then forced entry' is 'if no forced entry then no break-in,' which applies here.

Question 3

The suspect either entered through the front door or the back window. Forensic evidence confirms the front door was not used. What conclusion logically follows?

Accepted Answer

The suspect entered through the back window

Answer

When one of two mutually exclusive options is ruled out by evidence, the other must be true.

Question 4

If Officer Reyes is working the night shift, his patrol car will be in the parking lot. His patrol car is not in the lot. What can be concluded?

Accepted Answer

Officer Reyes is not working the night shift

Answer

Modus tollens: if P implies Q and Q is false, then P must be false.

Question 5

No officer may carry a department-issued firearm without completing annual qualification. Detective Park has not completed annual qualification. What logically follows?

Accepted Answer

Detective Park may not carry a department-issued firearm

Answer

The universal prohibition applies to all officers; Detective Park falls under that rule and cannot carry the firearm.

(LEAB) Law Enforcement Aptitude Battery Practice Test

(LEAB) Law Enforcement Aptitude Battery Practice Test

LEAB Deductive and Inductive Reasoning 2