Police Scotland Chief Constable Phil Gormley said officers had been deployed to find witnesses.
Trial Hears Another Boy 'Killed Liam Fee'
A murder trial has heard a young boy claim that another child was responsible for the death of toddler Liam Fee.
The jury has been shown a video of a police interview with the young witness carried out the day after Liam was found dead at a house in Fife on March 22, 2014.
In the interview, the witness said another boy had "done something bad, very, very bad, he's killed (Liam).''
Rachel Trelfa or Fee, 31, and her civil partner Nyomi Fee, 28, deny murdering the two-year-old and falsely blaming his death on another young boy.
On day ten of the trial at the High Court in Livingston, the jury heard the young witness say he had been playing with the other child in a room at the house as Liam slept in the room next door.
He said: "I think he sneaked out the door and into Liam's room and put his hand over his mouth so he couldn't breathe. Then he sneaked back.''
The witness said he did not see the other boy leaving or re-entering the room.
Asked by the police officer how he knew what had happened, he said Nyomi Fee "told me everything''. He added: "No-one else would have hurt him.''
The witness said Nyomi Fee had told him that Liam was white and not breathing, and that he had heard both of the accused "screaming and panicking''.
He said Nyomi Fee had also told the other child "look what you've done''.
He told the police officer the other boy "thought he was in big, big trouble because he had done it to him''.
"He was saying 'what have I done?', stuff like that.''
The witness said he did not speak to the other boy because "he's just killed somebody, I wouldn't want to talk to a killer''.
The young boy told police: "I love Liam, he's so cute, and now he's gone.''
Trelfa and Fee also plead not guilty to a catalogue of allegations of wilfully ill treating and neglecting two young boys, who cannot be named because of their age, over a period of more than two years.
One of these boys is the witness the jury have been hearing from while the other is the child they are accused of falsely blaming for Liam's death.
The jury have already been shown a video interview with that boy, who told police he had "strangled'' Liam but that the toddler had been sitting up and watching television afterwards.
Nicola Sturgeon paid tribute at a subdued First Minister's Questions.
The Scottish champions have also urged fans not to gather outside their Parkhead ground if the team win the Scottish Cup Final.
Talbot, of Greater Manchester, had denied the allegations but was convicted of seven of nine charges after a nine-day trial at Lanark Sheriff Court.
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