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.
âWe knew this person by name, called him by his first name, asked him how he was feeling. And he dropped the knife, and came to us and started listening to us.â. But despite this proven track record, only 10 percent of the nationâs 25,000 police departments require crisis intervention training. In North Carolina, where Keith was killed, only one in five officers receive the training.