18. As of October 2023, 170 people in prison were being held on 22+ hour lock-up.

As of April 2022, there are 411 prisoners being held on 22+ hour lock-up. 176 of these were being held on COVID-19 infection control measures, Rule 103.

As of January 2022, there are 686 prisoners being held on 22+ hour lock-up. 471 of these were being held on COVID-19 infection control measures, Rule 103

According to the April 2021 census of restricted regimes, there are 334 prisoners being held on 22+ hour lock-up. [Published data does not indicate the proportion of these held due to COVID-19 infection control measures.]

According to the October 2020 census of restricted regimes, there are 327 prisoners being held on 22+ hour lock-up. [Published data does not indicate the proportion of these held due to COVID-19 infection control measures.]

According to the January 2020 census of restricted regimes, there are 75 prisoners being held on 22+ hour lock-up. 

In April 2019, of 577 restricted regime prisoners: 30 were Rule 62; 530 were Rule 63 (voluntary); 15 were Rule 63 (involuntary); and 2 were Rule 64. 

In January 2019, of 570 restricted regime prisoners: 33 were Rule 62; 520 were Rule 63 (voluntary); 11 were Rule 63 (involuntary); and 6 were Rule 64. 

In July 2018, of 536 restricted regime prisoners: 37 were Rule 62; 477 were Rule 63 (voluntary); 12 were Rule 63 (involuntary); and 5 were Rule 64. 

In April 2018, of 514 restricted regime prisoners: 20 were Rule 62; 475 were Rule 63 (voluntary); 12 were Rule 63 (involuntary); and 4 were Rule 64.

In October 2017, of 428 restricted regime prisoners: 27 were Rule 62; 279 were Rule 63 (voluntary); 6 were Rule 63 (involuntary); and 3 were Rule 64. 

The number of prisoners on restricted regimes in July 2017 decreased by 15 persons, compared to April 2017. Figures show that there has been a decrease from 430 (April 2017) to 415 (July 2017), a decrease of 3%.

Of 430 prisoners held on restricted regimes, 44 are on 22+ hour lock up. (April 2017)

Of 301 prisoners held on restricted regimes, 43 are on 22+ hour lock up. (April 2015)

Of 193 prisoners held on 23-hour lock up, 44 are aged under 21. (19th March 2013)