https://en.wikipedia.org/wiki/Effects_of_Hurricane_Katrina_in_New_Orleans
On August 31, New Orleans's 1,500-member police force was ordered to abandon search and rescue missions and turn its attention toward controlling the widespread looting. The city also ordered a mandatory curfew. Mayor Nagin called for increased federal assistance in a "desperate S.O.S.", following the city's inability to control looting. He was often misquoted as declaring "martial law" in the city, despite there being no such term in Louisiana state law (a declaration of a state of emergency was instead made).[54] On the same day, Governor Kathleen Blanco announced the arrival of a military presence, stating that "they have M-16s and are locked and loaded. These troops know how to shoot and kill and I expect they will."[55] Despite the increased law enforcement presence, crime continued to be a problem.
Relief efforts were constantly disrupted by violence, and there were reports of groups of armed men running rampant through the streets, looting and pillaging unattended buildings and stores. Charity Hospital, one of several facilities attempting to evacuate patients, was forced to halt the effort after coming under gunfire.[56] By September 1, 6,500 National Guard troops had arrived in New Orleans, and on September 2 Blanco requested a total of 40,000 for assistance in evacuation and security efforts in Louisiana.[57][58][59][60] In addition, the Louisiana State Guard and state defense forcesfrom several states were activated to aid the National Guard in sheltering the large number of refugees leaving Louisiana and assist in other disaster recovery operations.[61]
Some concern over the availability and readiness of the Louisiana National Guard to help stabilize the security situation was raised. Guardsman Lieutenant Colonel Pete had commented that "dozens of high water vehicles, humvees, refuelers, and generators were abroad."[62] At the time of the hurricane, approximately 3,000 members of the Guard were serving a tour of duty in Iraq. With total personnel strength of 11,000, this meant that 27% of the Louisiana National Guard was abroad.[63]However, both the White House and the Pentagon argued that the depletion of personnel and equipment did not impact the ability of the Guard to perform its mission—rather, impassable roads and flooded areas were the major factors impeding the Guardsmen from securing the situation in New Orleans.
Before Hurricane Katrina, the murder rate in New Orleans was ten times higher than the U.S. average. After the situation in New Orleans was brought under control, criminal activity in New Orleans dropped significantly.[64]
In response to the increase in criminal activity in New Orleans, makeshift prisons were constructed to house prisoners for short periods of time. Camp Greyhound was a temporary prison that housed more than 200 suspected looters in New Orleans until they could be transferred to other institutions. With room for 700 prisoners, the facility was guarded by officers from one of the United States' toughest prisons, the Louisiana State Penitentiary at Angola.[65] The station's bus terminals were converted into chain-link prison cells that could hold up to fifteen prisoners each. These prisoners were kept in conditions that included a portable toilet and military issued meals, but excluded a mattress or cot.[66]
This camp demonstrated the reaction time and resourcefulness of the law enforcement of Louisiana. Several prisons were uninhabitable due to flooding, and the officers were forced to be flexible and work with the tools available to them. Law enforcement constructed the necessary offices of a police station in the general areas of the bus station, which included the offices of the District Attorney and the Justice Department.[67] Camp Greyhound did have several issues with police records due to flooding, and prisoners who had committed minor infractions were kept in the same areas as those with more serious allegations. The facility was run on backup generators and outdated fingerprinting methods were used, which added to the confusion of the facility.[68]