Queensland police would get powers to stop and search people, their phones, computers and Facebook photos following a terrorist attack, under proposed laws.

Under the changes, police would not need a warrant to be able to stop, detain and search people, vehicles and anything in their possession – laptops and mobile phones, for example – during a declared emergency or terrorist emergency.

The extraordinary emergency powers would be used in a declared area, for example where explosives had been used, people were being held hostage or if several people were wounded in a crowded place and it was not known who the attacker was.

Police Minister Mark Ryan introduced the Counter-Terrorism and Other Legislation Amendment this month, mentioning the attacks in London, France, Sweden and Belgium.