Denver spent at least $431,500 on the Occupy Denver protest between early October and Nov. 13 since it began in Downtown in early October, Mayor Michael Hancock’s spokeswoman Amber Miller said today.

The numbers represent total additional costs to the city for the demonstrations and do not include regular staffing expenses, which are accounted for within each department’s budget.

From Sept. 13 to Nov. 20, the Occupy Denver related costs for Colorado State Patrol were $351,189 which includes overtime pay, regular time pay and logistical expenses, according to CSP spokesman Trooper Nate Reed.

That brings the total cost to taxpayers for the more than two months of Occupy Denver to $782,689.

Protesters have challenged the necessity of the security around them, including officers or troopers watching the Occupy site at all hours. But police say the monitoring is necessary because the protesters have tried to erect tents in the parks, in violation of state law or city ordinance, if left unwatched.