Chief Officers
Sacha Hatchett - Chief Constable
Sacha joined the police service in February 1997 and has worked within a variety of different roles across North Wales Police, Cheshire and now Lancashire Constabulary.
As Assistant Chief Constable in North Wales Sacha had responsibility for Local Policing, Crime and Specialist Ops.
Sacha took up the position of Deputy Chief Constable at Lancashire Constabulary on 27th September 2021. The three Assistant Chief Constables and the Chief Operating Officer reported to her as the Deputy Chief Constable. Sacha also had responsibility for the Professional Standards Department, Corporate Development and Legal Services.
In September 2022, Sacha took responsibility as the NPCC lead for Serious Violence Reduction and Public Health Approaches in Policing.
Following the retirement of predecessor Chris Rowley, Sacha successfully passed the Chief Constable recruitment process and on Wednesday 6th March 2024 Sacha was confirmed as the Chief Constable of Lancashire Constabulary.
Sam Mackenzie - Deputy Chief Constable
Since joining Lancashire Constabulary Sam has split his service between uniformed and investigative roles and enjoyed time in every rank up to Chief Superintendent within these different functions. His experiences range from being a CBM in Blackpool and Response Sgt in Blackburn through to PPU DCI and the Head of PSD. He has also enjoyed working in every division across the county.
More recently Sam has been the Head of Local Policing having spent the previous year at HMICFRS leading on the development of the PEEL Inspection and prior to taking up his current role he was the Assistant Chief Constable (Crime and Specialist Capabilities).
Sam is responsible for the day-to-day running of the force and also oversees our Professional Standards Department, Legal Services and Corporate Development.
Gillian Routledge - Chief Operating Officer
Gillian joined the force in February 2022, having previously worked as Head of Tasking and Coordination at Durham Constabulary which included responsibilities for Intelligence Counter Terrorism, Forensics, Media and Marketing, combined intelligence and performance analytic team together with all the traditional Corporate Development services.
She has over 18 years of experience in policing and has supported national programmes for many years and was instrumental in Durham's constant success, bringing with her a huge knowledge of both enabling services and operational policing.
She is responsible for the delivery of Support Services including Data Protection, Estates and Facilities, Information Communication Technology, Fleet, Human Resources, Learning and Development, Organisation Development, Finance and Procurement.
In September 2023, Gillian took responsibility as the NPCC lead for Robotics Process Automation.
Mark Winstanley - Assistant Chief Constable (Crime and Specialist Capabilities)
Mark joins the Chief Officer Team having spent the last two and a half years as the Divisional Commander at East Division. He has over 27 year's service with Lancashire Constabulary having started his career as a PC in Accrington.
Mark has worked in various roles across all three Divisions and Headquarters and has worked as a Detective in every rank up to and including Chief Superintendent. Prior to his appointment as East Divisional Commander Mark was the Detective Chief Superintendent with force responsibility for Investigations & Safeguarding, and he has also worked as Head of the Professional Standards Department as well as Operations Manager in both South and West divisions.
Mark is also an accredited Gold Public Order Commander and Strategic Firearms Commander.
As ACC for Crime & Specialist Operations, Mark is responsible for Crime, Specialist Capabilities and also has force responsibility for Investigations.
Stasia Osiowy - Assistant Chief Constable (Territorial Operations)
Stasia joined Lancashire Constabulary as a Direct Entry Superintendent in 2017, working in front line policing on her rotations before becoming Operations Manager within East Division in 2019. Subsequently, Stasia became Head of Corporate Development based at Headquarters before moving to South in 2022 as the BCU Commander for the last two years. She was successful in achieving promotion to the role as ACC for Territorial Operations on 1st May 2025.
Prior to joining the Police, Stasia began her career as a Forensic Psychologist within the Prison Service and a High Secure Hospital. She then went on to work for the Home Office and Local Government in senior leadership positions involving public protection, youth justice and children's services.
As ACC for Territorial Operations, Stasia is responsible for Response, Response Investigation Team (RIT), Partnerships and Prevention, local policing across Lancashire and Media & Engagement.
Gareth Lee - Assistant Chief Constable (Specialist Operations)
ACC Lee has 23 years policing experience in Cheshire Constabulary, working geographically across the whole force in uniform and detective roles at every rank. More recently, ACC Lee has been a Detective Chief Superintendent in the roles of Head of Protecting Vulnerable People (PVP) and prior to that, Head of Crime.
As Assistant Chief Constable he is responsible for the Specialist Operations portfolio, which is made up of Contact Management, Criminal Justice, Custody and Specialist Operations.
He has experience of organisational change having led a force-wide change to the constabulary operating model and experience of partnership working both locally and with Criminal Justice partners as a former Head of Criminal Justice and Custody. As an experienced Strategic Firearms Commander(SFC) and former Tactical Firearms Commander (TFC) he has excellent insight into operational command and experience of force gold duties.
Want to know more?
Go to the Your Area section to see more about your local officers.
Go to our Police and Crime Commissioner page to find out more about Lancashire's PCC.
