If there was an imminent Threat toward a Royal family or God Forbid a Royal residence bombing what protocols are in place for the Safety of the senior Royal persons in various countries? Or maybe that is classified for obvious reasons.
For the DRF: That's where the adjutants come in. Depending on the situation.
The police and the military (Royal Lifeguard Regiment) protects the royals on a daily basis.
- In case of a terrorist attack on a palace, they will be the first line of defense. Holding the terrorists at bay until reinforcements from the police and heavier reinforcements from the Royal Lifeguard's guards battalion stationed a kilometer or so from say Amalienborg to arrive.
At an attack on Amalienborg the police will arrive within minutes and I'll estimate the army will be there in at least platoon size within twenty minutes.
Attacks on palaces outside Copenhagen: The entire guards company attached to protect that particular palace will be stationed on the grounds, ready to be deployed within minutes. We are here talking about perhaps two platoons.
At the terror attack in Copenhagen in February. The guards around Amalienborg were reinforced with regulars and perhaps a handful of special forces as well, that is not clear. Apart from police officers.
If there is a major attack on Denmark, where the situation is unclear, key persons are to be removed to a safe place until the situation is resolved. That would at the very least be at the palaces, behind heavy security. Or if the threat is very serious or the attack is very severe, QMII and Frederik will be flown to bunkers in Jutland.
If a royal is on the job somewhere in the country and such an attack takes place. It's PET reinforced with additional uniformed police officers who will provide protection. But it's the adjutants who will ensure the royal is moved to a safe location and secured there. The reason is very simple: Colonel Jensen, who is adjutant for say Mary, will call the relevant military HQ and commandeer military units and/or helicopters to evacuate the royal. (That's not something police officer Hansen can do and expect to be obeyed). Very likely to a military base nearby. Here the adjutant will formally take charge of the military protection of the royal. In reality it will be the local unit. Be that from the regular military or Home Guard, perhaps supported by the police.
It's the job of the PET officers to keep the royal safe until they reach a safe location or the military takes over.
- So there is a terrorist alert. Mary is at once taken away by PET, while her adjutant call in reinforcements. At first she is likely taken to the local police station or a hotel, that can be easily protected. Initially by police.
A little while later regular military units should arrive to take over. Then Mary under heavily armed guard will be taken to a safe place, probably a military installation and kept there until the situation is more clear.
If for whatever reason the regular military is unable to reach Mary within a couple of hours, the local Home Guard should by now have been mobilized and they will take over the protection of Mary along with the police, until she can be evacuated or the regular military takes over or the situation becomes more clear.
If a member of the DRF is abroad during a major terrorist attack in that country. It will be the responsibility of of that country to keep say Mary safe until she can be evacuated. If the country is insecure, it's not unlikely that FET agents will be flown in to protect her until she can be evacuated. Or alternatively special forces, who will ensure her safety and escort her and her entourage to a chartered or military plane (probably a Hercules or Gulf Stream) and flown out.
During an official visit by QMII and PH to Egypt in the 70's troubles broke out and QMII was basically evacuated to a commercial plane and flown out. She wasn't in direct danger as such, but the situation was unclear.