Final answer:
Detective Sherline could have known the neighbor was lying based on an inconsistent alibi, body language, contradictory statements, and witness testimony.
Step-by-step explanation:
The detective may have known the neighbor was lying based on several factors:
- Inconsistent Alibi: If the neighbor provided different or conflicting accounts of their whereabouts during the time of the incident, it could suggest dishonesty.
- Body Language: Detectives are trained to observe a person's body language for signs of deception, such as excessive sweating, avoiding eye contact, or fidgeting.
- Contradictory Statements: If the neighbor's statements contradicted each other or conflicted with other evidence, it would raise suspicion.
- Witness Testimony: If there were other witnesses who provided credible accounts contradicting the neighbor's version of events, it would cast doubt on their credibility.
By considering these factors, Detective Sherline could assess the neighbor's credibility and determine if they were being truthful or lying.