Hypothesis Statements, Statistics Question help

Hypothesis Statements, Statistics Question help

A police officer pulls over an individual that was driving recklessly.

The police office is trying to determine if the individual should be arrested for driving under the influence of alcohol.

Consider these Hypothesis Statements

Ho: The individual is not driving under the influence of alcohol.
 
HA: The individual is driving under the influence alcohol.
1. Please describe a Type I Error in this situation.   
 
2. Please describe a Type II Error in this situation.  
 

3. Which one do you think is worse?