I appears that the Wilson case was presented much like all other officer involved shootings.
http://www.statesman.com/news/news/c...ions-ev/nftqK/
Over the past five years, Travis County prosecutors have presented 25 cases to a grand jury in which a law enforcement officer used deadly force. Only Charles Kleinert has been indicted.
That track record is hardly unusual. Harris County grand jurors haven’t indicted a Houston police officer since 2004. Until this spring, when two Dallas police officers were indicted within a week, that department hadn’t seen an officer criminally charged for shooting a civilian for 40 years.
Such statistics are especially stark when compared with defendants who are not police officers. When defendants are civilians, prosecutors say, most grand juries return indictments.
Experts say the reasons for the disparity are procedural and psychological. Prosecutors tend to pre-select citizen crimes before presenting them to a grand jury to consider criminal charges, weighing whether they have enough evidence to go to trial.
By comparison, many jurisdictions present every police shooting to a citizen panel, regardless of whether or not there is a su ion the officer acted questionably, said Kim Vickers, executive director of the Texas Commission on Law Enforcement, which licenses peace officers.
“These cases go to a grand jury to provide the public assurance the investigation is going to be open and above-board, not just police investigating police,” said John Moritz, spokesman for the Combined Law Enforcement Associations of Texas, the state’s largest police union.
And despite what the public’s first impressions may be, many police shooting cases are much more complicated once all the facts are known.
“These cases are not always as they seem when we first hear about them,” said Travis County District Attorney Rosemary Lehmberg. “Once we dig deeper, there are invariably other issues that come up, which is why we are so thorough in presenting them.”
In the calm of a closed chamber, grand jurors tend to empathize with police performing a difficult job. Moritz said the public understands that officers carry a gun for a reason.
“When an officer displays lethal force, it’s because he or she believed it was an imminent threat to public safety,” he said.