The Police Investigations and Review Commissioner (Pirc) announced it would be reviewing an allegation made against a senior officer on Wednesday.
Siblings Aged Two And Three Killed In Loch Car Plunge
A young brother and sister who died when the car they were travelling in plunged into a remote Scottish loch have been named by police.
A major rescue operation was launched when the vehicle carrying the youngsters fell into Loch nan Druimnean, north of the Argyll and Bute village of Kilmelford, at around 4pm on Wednesday.
Police Scotland confirmed the names of the children as sister and brother Leia McCorrisken, three, and two-year-old Seth McCorrisken from the Argyll Area.
Their relatives have been informed.
A force spokesman said: "Inquiries are continuing to establish the exact circumstances of the incident and a report will be submitted to the procurator fiscal.''
Passers-by raised the alarm after reporting that a car with people inside had fallen into the loch.
Police, fire, ambulance and coastguard teams were all sent to the scene following the incident, which led to the temporary closure of the A816 road.
A coastguard helicopter and police dive teams scoured the loch as the emergency response unfolded.
The bodies of the children were later recovered from the water.
A 36-year-old woman was taken to hospital in the nearby town of Oban and released after treatment.
The car was recovered from the scene during the early hours of Thursday.
Argyll and Bute SNP MSP Mike Russell said the incident has shaken the local community.
He told Press Association Scotland: "I think everybody is just completely stunned. It is a horrific thing to have happened, nothing worse could be imagined for a family.
"I think there's a general sense of shock both in the local community and more widely in Argyll.
"It is a bad piece of road, it's a difficult piece of road, and the weather was very bad yesterday.
"I do think that people are looking at this and saying it's a terrible, terrible thing to happen and looking at the conditions and wondering whether they were contributing.
Opposition politicians and organisations representing doctors and nurses have repeatedly highlighted pressures many health workers can face.
London and Edinburgh also ranked in the top 10 list.
The devolved administrations have said they cannot recommend that legislative consent is given to the European Union (Withdrawal) Bill as it stands.
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