Ronan Guckian, Senior Investigator – Global Investigation Unit, EMEA Lead | MetLife
Ronan Guckian is ACi’s Head of Ireland. He is a qualified Barrister with over 20 years of experience in financial crime investigation, fraud risk management, and regulatory compliance. He currently serves as Senior Investigator in MetLife’s Global Investigation Unit, where he leads investigative operations across the EMEA region. His work focuses on complex financial crime, internal misconduct, and regulatory investigations, supporting MetLife’s global compliance strategy. Previously, Ronan was Deputy Head of the Financial Crime Unit at KBC Bank Ireland, where he oversaw operational fraud investigations and led staff related prosecutions. His responsibilities included managing large and complex fraud cases, liaising with domestic and international law enforcement, and presenting executive-level reporting. He has previously served as a Deputy MLRO and contributed to the design of financial crime controls across major banking products, including technologies to mitigate identity theft and enhance AML onboarding. Ronan has been involved in several high-profile Irish financial crime cases, contributing legal and investigative expertise to matters that shaped national fraud enforcement. He is a former member of the Banking & Payments Federation Ireland (BPFI) Fraud Database Steering Committee and has contributed to the Wider Fraud Forum, helping shape collaborative approaches to fraud risk across the Irish financial sector.
Charanjeet Singh, Head of UAE
Charanjeet Singh is a career banker with experience of over 24 years in retail and commercial banking. He has worked in India, Africa and for the last 11 years in the UAE.
He has worked with banks like ICICI, Barclays, Mashreq and is currently employed with First Abudhabi Bank. He has worked in various domains in being sector including Sales, Collections, Audit and Fraud Risk. Charanjeet has been the Chairperson of the UAE Bank Federation’s Fraud Prevention Committee since 2020 and in the past has also served as vice-chairperson of the same committee.
He is a Postgraduate in finance and holds certifications in Anti Money Laundering, Information Security and Fraud risk. He is passionate about fraud prevention and investigations and likes to share knowledge in this area. He has participated in multiple conferences as a speaker on matters related to fraud risk.
His expertise lies in setting up fraud risk frameworks including fraud prevention, monitoring & investigations. He has worked on implementing fraud prevention & monitoring systems to address fraud risk across the organisation including customer acquisition, staff and vendor onboarding, digital banking and operations.
Region: North & West LATAM
REGION: LATAM
Dercio Carvalheda, head of ACi Brazil
Dercio graduated in law from the Federal University of State of Rio de Janeiro in 2000. After that, he was approved to the Bar Association in Brazil and worked as an attorney to 2003, when joined Federal Police as a chief in police investigator. To the Federal Police, Dercio worked in several different areas: investigating financial crimes, corruption, environmental crimes, embezzlement of public funds, internal affairs, among others. Dercio, after a few years, was promoted to public manager. In 2020, he retired from Federal Police, same year that he concluded the Compliance specialization and became again the career as an attorney. From 2021 to 2022, Dercio worked in EY, in Rio de Janeiro, as a forensic senior manager, where continued to investigate frauds among others. Dercio has vast experience in conducting crime investigations and dedicated his career to combat corruption in all sectors.
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Shanu Saksena
Shanu is Head of ACi India. She is an experienced ethics, compliance, governance, and corporate secretarial leader with over 30 years of expertise in driving responsible business practices, regulatory compliance, mergers and acquisitions, and sustainability initiatives, with a strong background in managing listed companies, regulatory audits, policy compliance, third-party management, and corporate governance across multiple countries and industries.
REGION: EMEA
Ronan Guckian, Senior Investigator – Global Investigation Unit, EMEA Lead | MetLife
Ronan Guckian is ACi’s Head of Ireland. He is a qualified Barrister with over 20 years of experience in financial crime investigation, fraud risk management, and regulatory compliance. He currently serves as Senior Investigator in MetLife’s Global Investigation Unit, where he leads investigative operations across the EMEA region. His work focuses on complex financial crime, internal misconduct, and regulatory investigations, supporting MetLife’s global compliance strategy. Previously, Ronan was Deputy Head of the Financial Crime Unit at KBC Bank Ireland, where he oversaw operational fraud investigations and led staff related prosecutions. His responsibilities included managing large and complex fraud cases, liaising with domestic and international law enforcement, and presenting executive-level reporting. He has previously served as a Deputy MLRO and contributed to the design of financial crime controls across major banking products, including technologies to mitigate identity theft and enhance AML onboarding. Ronan has been involved in several high-profile Irish financial crime cases, contributing legal and investigative expertise to matters that shaped national fraud enforcement. He is a former member of the Banking & Payments Federation Ireland (BPFI) Fraud Database Steering Committee and has contributed to the Wider Fraud Forum, helping shape collaborative approaches to fraud risk across the Irish financial sector.
Charanjeet Singh, Head of UAE
Charanjeet Singh is a career banker with experience of over 24 years in retail and commercial banking. He has worked in India, Africa and for the last 11 years in the UAE.
He has worked with banks like ICICI, Barclays, Mashreq and is currently employed with First Abudhabi Bank. He has worked in various domains in being sector including Sales, Collections, Audit and Fraud Risk. Charanjeet has been the Chairperson of the UAE Bank Federation’s Fraud Prevention Committee since 2020 and in the past has also served as vice-chairperson of the same committee.
He is a Postgraduate in finance and holds certifications in Anti Money Laundering, Information Security and Fraud risk. He is passionate about fraud prevention and investigations and likes to share knowledge in this area. He has participated in multiple conferences as a speaker on matters related to fraud risk.
His expertise lies in setting up fraud risk frameworks including fraud prevention, monitoring & investigations. He has worked on implementing fraud prevention & monitoring systems to address fraud risk across the organisation including customer acquisition, staff and vendor onboarding, digital banking and operations.
Region: North & West LATAM
REGION: LATAM
Dercio Carvalheda, head of ACi Brazil
Dercio graduated in law from the Federal University of State of Rio de Janeiro in 2000. After that, he was approved to the Bar Association in Brazil and worked as an attorney to 2003, when joined Federal Police as a chief in police investigator. To the Federal Police, Dercio worked in several different areas: investigating financial crimes, corruption, environmental crimes, embezzlement of public funds, internal affairs, among others. Dercio, after a few years, was promoted to public manager. In 2020, he retired from Federal Police, same year that he concluded the Compliance specialization and became again the career as an attorney. From 2021 to 2022, Dercio worked in EY, in Rio de Janeiro, as a forensic senior manager, where continued to investigate frauds among others. Dercio has vast experience in conducting crime investigations and dedicated his career to combat corruption in all sectors.
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David Steirn
David Steirn is Head of Australia for ACi. He is a lawyer and Director of Enterprise Investigations and investigates for corporate and government clients across all sectors, often where issues of regulatory and legal breach, serious misconduct or systemic failure arise at the highest levels. His work has taken him across jurisdictions and countries and he frequently investigates high stakes and notable whistleblowing matters in both the private and public sectors. Before establishing Enterprise Investigations, David was a Sydney-based commercial barrister for a decade.
REGION: INDIA
Shanu Saksena
Shanu is Head of ACi India. She is an experienced ethics, compliance, governance, and corporate secretarial leader with over 30 years of expertise in driving responsible business practices, regulatory compliance, mergers and acquisitions, and sustainability initiatives, with a strong background in managing listed companies, regulatory audits, policy compliance, third-party management, and corporate governance across multiple countries and industries.
REGION: EMEA
Ronan Guckian, Senior Investigator – Global Investigation Unit, EMEA Lead | MetLife
Ronan Guckian is ACi’s Head of Ireland. He is a qualified Barrister with over 20 years of experience in financial crime investigation, fraud risk management, and regulatory compliance. He currently serves as Senior Investigator in MetLife’s Global Investigation Unit, where he leads investigative operations across the EMEA region. His work focuses on complex financial crime, internal misconduct, and regulatory investigations, supporting MetLife’s global compliance strategy. Previously, Ronan was Deputy Head of the Financial Crime Unit at KBC Bank Ireland, where he oversaw operational fraud investigations and led staff related prosecutions. His responsibilities included managing large and complex fraud cases, liaising with domestic and international law enforcement, and presenting executive-level reporting. He has previously served as a Deputy MLRO and contributed to the design of financial crime controls across major banking products, including technologies to mitigate identity theft and enhance AML onboarding. Ronan has been involved in several high-profile Irish financial crime cases, contributing legal and investigative expertise to matters that shaped national fraud enforcement. He is a former member of the Banking & Payments Federation Ireland (BPFI) Fraud Database Steering Committee and has contributed to the Wider Fraud Forum, helping shape collaborative approaches to fraud risk across the Irish financial sector.
Charanjeet Singh, Head of UAE
Charanjeet Singh is a career banker with experience of over 24 years in retail and commercial banking. He has worked in India, Africa and for the last 11 years in the UAE.
He has worked with banks like ICICI, Barclays, Mashreq and is currently employed with First Abudhabi Bank. He has worked in various domains in being sector including Sales, Collections, Audit and Fraud Risk. Charanjeet has been the Chairperson of the UAE Bank Federation’s Fraud Prevention Committee since 2020 and in the past has also served as vice-chairperson of the same committee.
He is a Postgraduate in finance and holds certifications in Anti Money Laundering, Information Security and Fraud risk. He is passionate about fraud prevention and investigations and likes to share knowledge in this area. He has participated in multiple conferences as a speaker on matters related to fraud risk.
His expertise lies in setting up fraud risk frameworks including fraud prevention, monitoring & investigations. He has worked on implementing fraud prevention & monitoring systems to address fraud risk across the organisation including customer acquisition, staff and vendor onboarding, digital banking and operations.
Region: North & West LATAM
REGION: LATAM
Dercio Carvalheda, head of ACi Brazil
Dercio graduated in law from the Federal University of State of Rio de Janeiro in 2000. After that, he was approved to the Bar Association in Brazil and worked as an attorney to 2003, when joined Federal Police as a chief in police investigator. To the Federal Police, Dercio worked in several different areas: investigating financial crimes, corruption, environmental crimes, embezzlement of public funds, internal affairs, among others. Dercio, after a few years, was promoted to public manager. In 2020, he retired from Federal Police, same year that he concluded the Compliance specialization and became again the career as an attorney. From 2021 to 2022, Dercio worked in EY, in Rio de Janeiro, as a forensic senior manager, where continued to investigate frauds among others. Dercio has vast experience in conducting crime investigations and dedicated his career to combat corruption in all sectors.
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An organisational structure to suit our members
The ACi is organised along corporate lines. We have four regions with the regional head sitting as a member of the Executive Committee to represent the region. The regional heads have sub-regional heads and in-country heads who form the regional management committees.
If you are interested in becoming a country head or sub-regional head and wish to learn more, please register your interest via Contact Us and the appropriate Executive Committee regional head will contact you to explain the role in more detail.
Please note country heads and sub-regional head positions on regional management committees must hold in-house roles. Country heads and sub-regional heads work pro bono in the interest of building the association.
REGION: ASIAN-PACIFIC (ASPAC)
David Steirn
David Steirn is Head of Australia for ACi. He is a lawyer and Director of Enterprise Investigations and investigates for corporate and government clients across all sectors, often where issues of regulatory and legal breach, serious misconduct or systemic failure arise at the highest levels. His work has taken him across jurisdictions and countries and he frequently investigates high stakes and notable whistleblowing matters in both the private and public sectors. Before establishing Enterprise Investigations, David was a Sydney-based commercial barrister for a decade.
REGION: INDIA
Shanu Saksena
Shanu is Head of ACi India. She is an experienced ethics, compliance, governance, and corporate secretarial leader with over 30 years of expertise in driving responsible business practices, regulatory compliance, mergers and acquisitions, and sustainability initiatives, with a strong background in managing listed companies, regulatory audits, policy compliance, third-party management, and corporate governance across multiple countries and industries.
REGION: EMEA
Ronan Guckian, Senior Investigator – Global Investigation Unit, EMEA Lead | MetLife
Ronan Guckian is ACi’s Head of Ireland. He is a qualified Barrister with over 20 years of experience in financial crime investigation, fraud risk management, and regulatory compliance. He currently serves as Senior Investigator in MetLife’s Global Investigation Unit, where he leads investigative operations across the EMEA region. His work focuses on complex financial crime, internal misconduct, and regulatory investigations, supporting MetLife’s global compliance strategy. Previously, Ronan was Deputy Head of the Financial Crime Unit at KBC Bank Ireland, where he oversaw operational fraud investigations and led staff related prosecutions. His responsibilities included managing large and complex fraud cases, liaising with domestic and international law enforcement, and presenting executive-level reporting. He has previously served as a Deputy MLRO and contributed to the design of financial crime controls across major banking products, including technologies to mitigate identity theft and enhance AML onboarding. Ronan has been involved in several high-profile Irish financial crime cases, contributing legal and investigative expertise to matters that shaped national fraud enforcement. He is a former member of the Banking & Payments Federation Ireland (BPFI) Fraud Database Steering Committee and has contributed to the Wider Fraud Forum, helping shape collaborative approaches to fraud risk across the Irish financial sector.
Charanjeet Singh, Head of UAE
Charanjeet Singh is a career banker with experience of over 24 years in retail and commercial banking. He has worked in India, Africa and for the last 11 years in the UAE.
He has worked with banks like ICICI, Barclays, Mashreq and is currently employed with First Abudhabi Bank. He has worked in various domains in being sector including Sales, Collections, Audit and Fraud Risk. Charanjeet has been the Chairperson of the UAE Bank Federation’s Fraud Prevention Committee since 2020 and in the past has also served as vice-chairperson of the same committee.
He is a Postgraduate in finance and holds certifications in Anti Money Laundering, Information Security and Fraud risk. He is passionate about fraud prevention and investigations and likes to share knowledge in this area. He has participated in multiple conferences as a speaker on matters related to fraud risk.
His expertise lies in setting up fraud risk frameworks including fraud prevention, monitoring & investigations. He has worked on implementing fraud prevention & monitoring systems to address fraud risk across the organisation including customer acquisition, staff and vendor onboarding, digital banking and operations.
Region: North & West LATAM
REGION: LATAM
Dercio Carvalheda, head of ACi Brazil
Dercio graduated in law from the Federal University of State of Rio de Janeiro in 2000. After that, he was approved to the Bar Association in Brazil and worked as an attorney to 2003, when joined Federal Police as a chief in police investigator. To the Federal Police, Dercio worked in several different areas: investigating financial crimes, corruption, environmental crimes, embezzlement of public funds, internal affairs, among others. Dercio, after a few years, was promoted to public manager. In 2020, he retired from Federal Police, same year that he concluded the Compliance specialization and became again the career as an attorney. From 2021 to 2022, Dercio worked in EY, in Rio de Janeiro, as a forensic senior manager, where continued to investigate frauds among others. Dercio has vast experience in conducting crime investigations and dedicated his career to combat corruption in all sectors.
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