The construction work began in 1857, at the behest of Commander Patrício Correia da Câmara, first Viscount of Pelotas and vice-president of the Province of São Pedro do Rio Grande do Sul, acting as president.

The project conceived by engineer Francisco Nunes de Miranda included a basement, two floors and two turrets, as well as modern structural solutions for the time, such as the roof slab with a system of double "T" steel profiles combined with compression bricks, forming small arches.

[5] The memorial promotes seminars on the history and perspectives of the Public Ministry in Rio Grande do Sul and in Brazil, and develops projects with the community, reinforcing and clarifying the mechanisms available for the exercise of citizenship.

The group of interviewers includes members of the institution, people from Rio Grande do Sul and from other states, judges, civil servants, wives of prosecutors, politicians, etc.

Some of the statements have already been published, in full, in volumes 1, 2 and 3 of the series Histórias de Vida do Ministério Público (English: Life Stories from the Public Ministry).