New Jersey is buying 1,000 body cameras to equip all its state troopers and also announcing policies for local police on how the technology should be used.
The State Police superintendent and acting attorney general are planning to announce details Tuesday.
Attorney General's Office spokesman Peter Aseltine said troopers will be trained to use the cameras starting next month. The devices are to be bought in batches. The cameras and computer upgrades have a price tag of $1.5 million.
Aseltine said the state also plans to use $2.5 million in forfeiture funds to help local police buy the cameras.
Police cameras have been growing in use, particularly amid calls from civil liberties advocates after high-profile police shootings, including last year in Ferguson, Missouri.