activator - (biology) any agency bringing about activation; a molecule that increases the activity of an enzyme or a protein that increases the production of a gene product in DNA transcription. 1  substance - the real physical matter of which a person or thing consists; DNA is the substance of our genes.
In 2006, in cases where police officers intentionally fired a gun at a person, they discharged 364 bullets and hit their target 103 times, for a hit rate of 28.3 percent, according to the departmentâs Firearms Discharge Report. The police shot and killed 13 people last year. In 2005, officers fired 472 times in the same circumstances, hitting their mark 82 times, for a 17.4 percent hit rate. They shot and killed nine people that year.
But the âlegal interventionâ deaths â an average of 406 per year from 1999 to 2011 â are not useful on their own since many police homicides are misclassified simply because the coronerâs report does not mention police involvement.he shooting and the response have reignited concerns about racial profiling, police brutality and police militarization. The incident has also drawn attention to a remarkable lack of knowledge about a seemingly basic fact: how often people are killed by the police.