The new Government has set out its expectations for how the Commissioner of Police should do his job.
The publicly-released letter calls for frontline officers to be considered the priority when investment decisions are made.
It also reminds Coster of his responsibility to deliver on the Government's law and order commitments.
That includes plans to ban gang patches, give police greater powers to search gang members and begin cracking down on youth offending.
Police Minister Mark Mitchell says he thinks it's the first time a letter like this has been made public.
"There's been a loss of confidence around the Labour Government and their failure to take public safety seriously or put public safety at the heart of what they're doing, I thought it was important to have a reset."
LISTEN ABOVE
See omnystudio.com/listener for privacy information.
Las Culturistas with Matt Rogers and Bowen Yang
Ding dong! Join your culture consultants, Matt Rogers and Bowen Yang, on an unforgettable journey into the beating heart of CULTURE. Alongside sizzling special guests, they GET INTO the hottest pop-culture moments of the day and the formative cultural experiences that turned them into Culturistas. Produced by the Big Money Players Network and iHeartRadio.
Dateline NBC
Current and classic episodes, featuring compelling true-crime mysteries, powerful documentaries and in-depth investigations. Follow now to get the latest episodes of Dateline NBC completely free, or subscribe to Dateline Premium for ad-free listening and exclusive bonus content: DatelinePremium.com
24/7 News: The Latest
The latest news in 4 minutes updated every hour, every day.