An MP has written to the police commissioner to inspect CCTV footage after the temporary memorial to Daphne Caruana Galizia was once again destroyed overnight.
Nationalist MP Karol Aquilina urged the police to take action after candles and flowers were removed or dumped at the foot of the Great Siege monument in Valletta.
It is the second time the memorial to the slain journalist was cleared out in two days.
Dr Aquilina said a considerable number of CCTV cameras are located around the monument, which faces the courts of justice.
Within hours on Thursday morning, the site was once again filling up with new candles and flowers.
The Civil Society Network had asked the Valletta police to protect the makeshift memorial after Labour councillor Ray Azzopardi filed a motion to remove it. The councillor had said that Caruana Galizia shrine was a defacement of a national monument.
Prominent government officials, including Valletta 2018 chairman Jason Micallef, posted disparaging remarks on the murdered journalist over the weekend.
Ms Caruana Galizia was killed in a car bomb last October.