Process Simulation to Improve Custody Throughput

Alan Jackson

Hampshire Constabulary

Overview:Overview: Hampshire Constabulary have Hampshire Constabulary have employed employed

Business PBusiness Process rocess MManagement, together anagement, together wwith ith appropriate tools, as an essential part appropriate tools, as an essential part of their continuance improvement ethos of their continuance improvement ethos since 2002.since 2002.

iGrafx Process Improvement Solutions are iGrafx Process Improvement Solutions are an essentialan essential part of process management part of process management within the Constabularywithin the Constabulary

Custody Process Simulation TaskCustody Process Simulation Task

In support of plans to combine three older In support of plans to combine three older custody suites into one large purpose built custody suites into one large purpose built suite analysis support was required to suite analysis support was required to review the following areas prior to GO LIVE;review the following areas prior to GO LIVE;

Demonstrate impact of combined custody Demonstrate impact of combined custody volumes from 3 sites volumes from 3 sites

Create simulation model to demonstrate Create simulation model to demonstrate impact of these custody volumes on impact of these custody volumes on business processes and staffing levelsbusiness processes and staffing levels

Challenges:Challenges:

Mixture of electronic and manual data.Mixture of electronic and manual data. Manual data sometimes inaccurateManual data sometimes inaccurate Utilising the data set from 3 different sitesUtilising the data set from 3 different sites Ensuring correct mix of data set – no bail Ensuring correct mix of data set – no bail

returnsreturns Tight TimescalesTight Timescales

Simulation Model:Simulation Model:Custody Data for simulation model based on November 09.Custody Data for simulation model based on November 09.

Daily resource availability capped at 85% (allowing for Meal breaks, Daily resource availability capped at 85% (allowing for Meal breaks, Housekeeping etc.) Housekeeping etc.)

No provision made for Abstractions and Annual LeaveNo provision made for Abstractions and Annual Leave

2 Custody operations were simulated:-2 Custody operations were simulated:-

Simulation 1:- 3,1,3 RatioSimulation 1:- 3,1,3 Ratio - 3 Custody Sergeants (2 booking in, 1out)- 3 Custody Sergeants (2 booking in, 1out) - 1 CCTV / Security operator - 1 CCTV / Security operator - 3 CDO’s (1 dedicated floor walker, 2 booking in / out )- 3 CDO’s (1 dedicated floor walker, 2 booking in / out )

Simulation 2 :- 4,1,4 RatioSimulation 2 :- 4,1,4 Ratio 4 Sergeants (3 in 1 out)4 Sergeants (3 in 1 out)

- 1 CDO (CCTV etc)- 1 CDO (CCTV etc) - 4 CDO’s (dedicated floor walker and 3 alternating).- 4 CDO’s (dedicated floor walker and 3 alternating).

5 OCU New Build (Custody Process)

Holding cells

Custody Desk

Custody Detention

Officer

CPS

Custody reception and detention Custody Disposal

Solicitor

PND BailCharge

CPS advice

NFACaution

F/W

Promat

Cells initial holding 2

Prepare Disposal

Cells awaiting disposal

Cells following interview

PACE Re-Rights or Appropriate

Adult

Pre-charge advise

required?

Charge (28%)

Bail (33%)

PND (2%)

Caution F/W (8%)

No (88%)

Cells initial holding

No (95%)

No, Await disposal (90%)

NFA (16%)

Custody until Court av ailable

No solicitor

Investigation Process

No interview

Investigation Progression

Solicitor (33%)

No (67%)

Interview (81%)

No (19%)

Promat (2%)

Interview

CPS advice (10%)

Charge DeskEnd

End

Holding cells

Reasons for arrest

explained. Wand search

DNA, Livescanand escort to

cell

Yes (12%)

Medical (5%)

CUSTODY PROCEDURECustody Sgts (2)

Custody (15%) Release (85%)

Custody Sgt advice and progression

OIC

No (98%)

CDO 3Cell BlockSupervision

CDO 3Cell BlockSupervision

CDO 3Cell BlockSupervision

CDO 3Cell BlockSupervision

CDO 3Cell BlockSupervision

Average transaction (detention) time 3, 1, 3 = 10.44Average transaction (detention) time 4, 1, 4 = 10.04

Escort back to cell

Other Disposal

Other Disposal (13%)

Main arrest reasons;Minor Assaults 15%Thefts 13%Serious Assaults 10%Public Order 8%Burglary 7%Criminal Damage 6%Drugs 5%Drink Drive 4%

Smart Water check (by OIC)

CDO 4

CDO 2

CDO 1

CDO 2

CCTV & Security

Fast track for intoximeter

Detentionauthorised?

Yes (99%)

Release

No (1%)

Security and meal break

coverEnd

17/02/14

Process Description

Process name

Owner

Developer

Type and level

Completed date

Reviewed date

New Custody

5 OCU

Alan Jackson

Resource Simulation

05/07/10

Re-Rights or/and A/A

CDO 2

No (96%)

Drink Drive (4%)

1

6

7

8

9

5

4

3

2

10

15

16

17

18

14

13

12

11

19

24

25

26

27

23

22

21

20

28

33

34

35

36

32

31

30

29

Cell Block Supervision

Simulation Results:Simulation Results:Average Custody arrivals in November = 2 per hour Average Custody arrivals in November = 2 per hour

Simulation 1 :- Staffing Profile : 3,1,3 (3 Custody Sergeants, 1 CCTV, 3 CDO’s)Simulation 1 :- Staffing Profile : 3,1,3 (3 Custody Sergeants, 1 CCTV, 3 CDO’s) Results from simulation :-Results from simulation :- - 10 hrs 44 mins = Average time spent in custody - 10 hrs 44 mins = Average time spent in custody - Custody Desk unable to keep pace with intake and despatch (increasing - Custody Desk unable to keep pace with intake and despatch (increasing pressure on limited holding area)pressure on limited holding area) - Prolonged periods of time with excessive queues- Prolonged periods of time with excessive queues

Simulation 2:- Staffing Profile : 4,1,4 (4 Custody Sergeants, 1 CCTV, 4 CDO’s)Simulation 2:- Staffing Profile : 4,1,4 (4 Custody Sergeants, 1 CCTV, 4 CDO’s) Results from simulation :-Results from simulation :- - Average time spent in custody reduced to 10hrs 04 mins - Average time spent in custody reduced to 10hrs 04 mins - More consistent flow (from intake to despatch).- More consistent flow (from intake to despatch).

Comment: Custody Processes require reviewing / streamlining (in line with Comment: Custody Processes require reviewing / streamlining (in line with pace) with a view to reducing the time spent in detentionpace) with a view to reducing the time spent in detention