Should an investigator only focus on proving a hypothesis?

An investigator should prioritize disproving a hypothesis as it is a critical part of the scientific process and the investigative method. This approach ensures that the investigation remains objective and thorough. Focusing solely on proving a hypothesis can lead to confirmation bias, where an investigator might overlook evidence that contradicts their initial beliefs. By actively seeking evidence that could disprove the hypothesis, an investigator maintains a balanced perspective, allowing for a more comprehensive understanding of the incident.

In fire investigation, it is important to consider all available evidence, including those aspects that do not conform to the initial theory or assumptions. Disproving a hypothesis can lead to new insights that may reveal the true cause of a fire, ensuring that the investigation is credible and based on factual data rather than preconceived notions. This balanced approach to hypothesis testing helps to build a robust case and enhances the reliability of the findings in the investigative process.