Maria Karaiskos KC

Maria Karaiskos KC is a highly respected Silk renowned for her rigorous preparation, incisive analysis and ability to quickly identify the issues that matter. Her disciplined and strategic approach has been shaped by more than two decades of experience in serious and sensitive criminal cases.

She brings a rare breadth of perspective to every case. In addition to her work as both prosecution and defence counsel, she sits as a Recorder and Deputy District Judge. This combination of advocacy and judicial experience gives her a unique insight into case strategy, evidential assessment and courtroom dynamics.

Maria is trusted for her calm authority, persuasive advocacy and ability to bring clarity to complex legal and factual issues. She is widely recognised for her “excellent judgement” and for setting “a really exceptional tone in court”. Solicitors describe her as “first class”, noting her calm and measured approach even in the most challenging circumstances, while clients value her ability to provide clear, reassuring advice with sensitivity and professionalism.

Her advocacy is frequently praised, with clients and professional colleagues highlighting the quality of her cross-examination, meticulous preparation and persuasive courtroom presence. She combines intellectual rigour with a practical, client-focused approach that inspires confidence at every stage of proceedings.

Called to the Bar in 2000 and appointed King’s Counsel in 2023, Maria is the first female silk and the first home-grown silk at Church Court Chambers.

Her practice encompasses the full spectrum of serious criminal work, including cases involving complex legal arguments, extensive disclosure, expert evidence and large volumes of material. She is regularly instructed in matters requiring detailed evidential analysis, careful strategic planning and confident advocacy.

Areas of Expertise

Maria’s practice includes:

• Homicide and attempted murder
• Serious sexual offences, including historic, multi-complainant and familial allegations
• Child cruelty and neglect
• Large-scale fraud and financial crime
• Drug conspiracies and organised criminal activity
• Fatal road traffic offences and complex driving cases
• Confiscation and proceeds of crime proceedings
• Multi-handed trials involving numerous defendants
• Cases involving psychiatric, medical, digital, forensic and financial expert evidence
• Appeals and cases raising complex issues of admissibility, disclosure and abuse of process

Maria has extensive experience representing vulnerable clients and witnesses, including children, those affected by trauma and individuals with mental health or communication difficulties. Her thoughtful and reassuring manner enables clients to engage effectively with the legal process while maintaining confidence and dignity throughout proceedings.

She also maintains a substantial private client practice, frequently advising professionals, and students facing allegations with potentially life-changing personal and reputational consequences. She is valued for her discretion, strategic judgement and ability to guide clients through highly sensitive matters with confidence and clarity.

Regulatory Work

Alongside her criminal practice, Maria undertakes a broad range of regulatory and quasi-criminal work, including environmental offences, health and safety prosecutions, local authority enforcement, trading standards matters and breaches of High Court injunctions.

Her judicial experience as a Deputy District Judge further enhances this aspect of her practice. Sitting regularly in the Magistrates’ Court, she deals with financial seizure and forfeiture applications, housing matters, licensing issues, local authority enforcement and regulatory proceedings. This perspective provides valuable insight into how such cases are assessed and determined, enabling her to offer strategic and pragmatic advice to both prosecution and defence clients.

Maria is particularly effective in cases involving complex statutory frameworks, technical expert evidence and significant reputational considerations. She is known for bringing structure, focus and clear strategic direction to challenging regulatory proceedings.

Training and Education

Maria regularly delivers lectures and training on complex legal issues to audiences ranging from specialist practitioner groups to large national and international conferences.

She is also committed to legal education and community engagement, working with schools and youth organisations to improve understanding of the criminal justice system and encourage informed decision-making among young people.

Direct Access

Maria is accredited to accept instructions directly from members of the public through the Public Access scheme.

Recent Cases

R v DD – Murder
Prosecuted a fatal stabbing at Strawberry Hill station. A complex case at the Old Bailey involving contested audio evidence, forensic reconstruction, multiple legal arguments and significant evidential rulings.

R v KL – Murder
Defended in a long-running and sensitive domestic murder case involving complex issues of medical causation, self-defence, joint enterprise allegations against three defendants and the impact of delayed medical treatment.

R v YH – Murder (Court of Appeal)
Defended a circumstantial stabbing case requiring detailed analysis of CCTV, forensic evidence and the defendant’s account of events within the building. Maria was granted leave to appear in the Court of Appeal, advancing arguments on the proper approach to leaving self-defence to a jury, drawing on established authorities and the evidential threshold required before alternative defences should be considered.

R v HF – Murder
Prosecuted a harrowing case involving a young son who killed his mother whilst under the influence of ketamine. The case involved extensive psychiatric evidence, toxicology and forensic science reports, together with the careful presentation of highly sensitive family background material.

R v SD – Sexual Offences
Defended in a multi-handed case involving historic allegations of sexual offending between children. The case required careful handling of sensitive evidence, consideration of a doli incapax defence, issues of evidential conflation and successful legal arguments under section 41 of the Youth Justice and Criminal Evidence Act 1999.

R v PH – Sexual Offences
Defended a bar manager accused of rape by multiple complainants who had worked under his supervision. The case involved complex issues of workplace dynamics, disclosure obligations and the careful testing of several interlinked accounts.

R v Youth – Sexual Offences
Defended a student at a prominent independent secondary school accused of raping another student. A highly sensitive and emotionally charged case requiring careful handling and cross-examination of vulnerable witnesses.

R v RA – Sexual Offences
Defended a well-known sportsperson facing historic allegations involving a child. The case required rigorous scrutiny of delayed complaints, extensive third-party material and the reconstruction of events alleged to have occurred many years earlier.