What caution should be noted when using lasers over long distances?

When using lasers over long distances, one important consideration is that accuracy can decrease as the distance increases. This phenomenon occurs due to several factors, including divergence of the laser beam and atmospheric conditions that can distort the beam's path. Over long distances, the beam spreads out more and may become less focused, leading to a wider area of illumination and reduced precision in pinpointing a specific target. Additionally, factors such as dust, moisture, or other particulates in the air can scatter the laser light, contributing further to inaccuracies. Therefore, understanding how distance affects laser accuracy is crucial in crime scene investigations or any practical applications involving lasers.