The judge convicted Tarrant on all charges and remanded him in custody until a nominal date of 1 May. Sentencing will take place at a later date, to be determined once the COVID-19 lockdown has been lifted. Having been convicted for murder involving multiple deaths, Tarrant faces a mandatory sentence of life imprisonment with the possibility of parole being granted after 17 years (unless in the circumstances such a sentence would be manifestly unjust). The sentencing judge may, taking into account the aggravating and mitigating factors of the offence, extend the non-parole period or impose life imprisonment with no possibility of parole.:102–4  Prior to the shootings, the longest non-parole period imposed for murder in New Zealand has been 30 years; no person has ever been sentenced to life imprisonment with no possibility of parole. In April 2019, police released a final timeline of the event. It stated that police were at the first scene within minutes of the incident being reported at 1:41 p.m. It was initially understood that the arrest had taken 36 minutes, but it was later clarified that it had taken 18 minutes. In response to criticism that police were too slow to react, District Commander John Price said: "That is an incredibly fast response time. You had a mobile offender across a large metropolitan city." St. John Ambulance sent 20 ambulances and other vehicles to the mosques. Most of the wounded were taken to Christchurch Hospital. Forty-eight people with gunshot wounds, including young children, were treated at the hospital, with some taken to other hospitals within Christchurch and nationally. Canterbury District Health Board activated its mass-casualty plan. Paramedics describe a 'river of blood' coming out of the mosque and having to step over bodies to collect the wounded. Police advised all mosques in the country to close until further notice, and sent officers to secure various sites in Christchurch. All Air New Zealand Link services departing from Christchurch Airport were cancelled as a precaution, due to the absence of security screening at the regional terminal. Security was increased at Parliament, and public tours of the buildings were cancelled. In Dunedin, the Armed Offenders Squad searched a house, later reported to have been rented by the gunman, and cordoned off part of the surrounding street in Andersons Bay because Tarrant had indicated on social media that he had originally planned to target the Al Huda Mosque in that city. For the first time in New Zealand history, the terrorism threat level was raised to high.