Police officers are in a position of authority over practically everyone. They are allowed to use deadly force when they deem necessary. This near absolute power leads many to become egotistical. They think they know more about people than the individuals know about themselves. These officers don't like to admit to being wrong, but sometimes they are.
This was jumping to conclusions. For an officer to come and inquiry about the party, be told its root beer, and try a cup himself could've settled the issue. Instead they did a full investigation. Worries about community sentiment are NOT an excuse.
They NOT only jumped to conclusions. Had the only conclusion they jumped to was that the keg was of alcohol it could've been dispelled quickly by tasting the root beer. They must have jumped to the conclusion or been worried about the chance of there being a hidden keg of alcohol and the keg of root beer being a cover. That's just flat out paranoid. Fears about community sentiment are NOT an excuse for worrying about the <1% possibility that the keg of root beer was a cover for alcohol.
Yes, police rush to judgement. This is never more true than when talking about police in Wisconsin. The entire law enforcement structure in Wisconsin is corrupt. Making a Murderer, a popular documentary currently airing on Netflix, solidifies this argument. Wisconsin police decided Steven Avery was guilty of a rape and a subsequent murder without sufficient evidence to prove either crime. They based these assumptions on Avery's unsavory past activities instead of following the law and giving him and others like him the constitutional right of being innocent until proven guilty.
Yes, they sometimes do. I think police get so used to seeing foul play that it becomes a second nature to pass judgment. I'm sure I've done such myself just being a regular human being. They probably do the best they can, but their previous experiences sometimes determine their actions.
Police shouldn't rush to judgement because there could be multiple circumstances to why the teen has a keg filled with root beer. Not given background information from the teen and about the teen, it is unknown if the teen was found intoxicated and/or was found drinking from the keg. To properly execute this ordeal, the police should first hear from the teen's perspective before making judgements.