Nawrocki had been due to visit Slovenia on Thursday and Friday for a meeting of presidents from EU countries belonging to the so-called Arraiolos Group.
Bogucki said the decision was prompted by the "seriousness of the situation surrounding the Constitutional Tribunal," which he said had been developing for several months.
He was speaking after Maciej Berek, a former minister in Prime Minister Donald Tusk's government, took an oath as a Constitutional Tribunal judge at parliament on Wednesday amid Nawrocki's failure to administer the oath.
Berek, who was elected by lawmakers in September, directed the oath at the president, who normally swears constitutional judges into office. He later submitted a written oath bearing his notarised signature to the president's office.
Berek subsequently went to the Tribunal with other judges elected by the current parliament and met with its head Bogdan Święczkowski.
Święczkowski later said Berek had not established "an official service relationship as a judge" and would not be allowed to hear cases until the president's position on his oath had been obtained.
Nawrocki has rejected Berek's appointment, arguing that he did not properly take the oath required to assume office.
Bogucki said Nawrocki went to the Tribunal on Wednesday to meet judges who were there at the time.
Demonstrators, including members of the so-called Border Defence Movement and the opposition-linked Gazeta Polska clubs, scuffled with police outside the building. Protesters attempted to block the entrance.
Bogucki accused law enforcement services overseen by the interior ministry of unlawfully bringing "people into the Tribunal who have not completed the process of taking office as judges" and said the move amounted to "forceful pressure on the Tribunal."
He also rejected an opinion issued on Tuesday by the Venice Commission, a panel of international legal experts, saying it had been used as a pretext for Wednesday's actions.
The opinion addressed whether an oath could be taken without the president's physical participation.
Bogucki said opinions issued by the Venice Commission or other Polish and foreign bodies were not legally binding and could not serve as the basis for actions by state authorities.
He also said Nawrocki had asked the Tribunal in April to resolve a dispute between the president and parliament over the oaths of four judges elected earlier, arguing that the matter remained pending.
Bogucki said Nawrocki had not refused to receive Berek's oath but wanted clarification on whether Berek met the statutory requirements for a Constitutional Tribunal judge, including the required professional experience.
He said the president would have no objection to receiving the oath if the matter were resolved in Berek's favour.
Zbigniew Bogucki. Photo: PAP/Paweł Supernak
The president's office had questioned whether Berek met the formal requirements, including the required professional experience as a legal adviser.
Berek has said there is no procedure allowing the president to review parliament's decision to elect a Constitutional Tribunal judge.
The Constitutional Tribunal, which rules on the constitutionality of laws, has been at the centre of a legal battle for more than a decade. The previous government, led by the right-wing Law and Justice (PiS) party, of which Nawrocki is an ally, was accused of politicising the court by packing it with loyalists.
(sp/gs)
Source: PAP