Monaco introduces plea bargain system in biggest criminal justice reform in decades

Monaco has introduced plea bargaining into its criminal justice system for the first time, creating new procedures designed to resolve certain criminal cases more quickly while easing pressure on the courts.

The reform, adopted through Law No. 1.593 of 18th June 2026 and published in the latest Journal de Monaco, introduces two new legal mechanisms: plaider coupable (pleading guilty) and the convention pénale.

The changes represent one of the most significant updates to Monaco’s criminal procedure in recent years, bringing the Principality’s legal system closer to practices already used in countries including France.

A faster route for straightforward cases

Under the new legislation, prosecutors will be able to propose an agreed sentence to defendants who acknowledge the facts of certain offences. If both parties accept the proposal, it must still be reviewed and approved by a judge before becoming legally binding.

The objective is to avoid lengthy court proceedings in cases where there is little dispute over what occurred, allowing the justice system to focus more resources on complex criminal trials.

The law also creates a separate convention pénale procedure, giving prosecutors an additional negotiated resolution for eligible offences under judicial supervision.

Judicial oversight remains

Unlike informal settlements, neither procedure removes the court from the process.

A judge retains responsibility for verifying that the defendant entered the agreement freely, understood its consequences and that the proposed penalty is appropriate before giving final approval.

The reform therefore seeks to improve efficiency without reducing judicial safeguards.

Modernising Monaco’s justice system

The adoption of plea bargaining reflects a broader programme of judicial modernisation that has accelerated over recent years, with Monaco updating a number of legal procedures to improve efficiency while maintaining legal certainty.

The legislation came into force following its publication in the Journal de Monaco on 26th June.

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Photo of the court house of Monaco, credit: Cassandra Tanti

Casino de Monte-Carlo marks the “Wedding of the Century” with photo exhibition

Monte-Carlo Société des Bains de Mer has opened a photographic exhibition in the Atrium of the Casino de Monte-Carlo to mark the 70th anniversary of the wedding of Prince Rainier III and Grace Kelly, joining a wider programme of commemorations organised by the Princely Palace. 

Prince Rainier III and Princess Grace married in a religious ceremony at Monaco Cathedral on 19th April 1956, the day after their civil wedding. The service was broadcast live on Eurovision and watched by an estimated 30 million viewers, earning it the title “the Wedding of the Century” and, according to the Palace, making it still the second most widely covered event in the world after the coronation of Queen Elizabeth II. Seventy years on, the Prince’s Palace Archives and the Audiovisual Institute of Monaco are marking the anniversary with an exhibition in the Palace’s Grand Apartments, a film screening in the Cour d’Honneur on 20th July, and a series of events across the Principality.

A look back at two evenings in Monte-Carlo

Société des Bains de Mer’s contribution focuses on two evenings held in its own establishments during the wedding celebrations: a dinner-show on 15th April at the International Sporting Club, and a gala on 18th April at the Salle Garnier, the setting designed 78 years earlier by architect Charles Garnier. Working with the Walter scenography studio, the Group has installed ten life-size period photographs in the Atrium of the Casino de Monte-Carlo, drawing on images from the Palace Archives to recreate both occasions.

The 18th April gala saw the premiere of ‘Tribute to the Princess’, a five-act performance by dancers of London’s Festival Ballet, including prima ballerina Margot Fonteyn. The dancers wore costumes designed by André Levasseur, with choreography by Michael Charnley set to music by Stan Kenton.

A long-standing connection between the Group and the Princely Family

The 1956 wedding celebrations were not the only occasion on which a Société des Bains de Mer venue hosted the Princely couple. In 1976, the cellars of the Hôtel de Paris were the setting for Prince Rainier and Princess Grace’s 20th wedding anniversary celebrations. More recently, in 2019, the Hôtel de Paris Monte-Carlo named its two finest Diamond Suites ‘Prince Rainier’ and ‘Princess Grace’ as part of its renovation, a gesture the Group says reflects ties with the Princely Family stretching back to its founding in 1863.

See also: 

Palace opens exhibition marking 70 years since ‘wedding of the century

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Photo source: SBM