Imagine you just got a new toy and your mom asks if she can look at it. If you say yes, that means you gave your consent or permission for your mom to look at your toy.
Now, in the same way, imagine a police officer asks to look at your bag. If you say yes, that means you gave your consent for the police officer to search your bag.
This is called a consent search. It means that the police officer does not need a search warrant or any other legal authorization to search your things. Instead, they are relying on your permission to look through your stuff.
However, it is important to understand that you don't have to give your consent. It's your right to say no. If you do say no, then the police officer cannot search your things without a legal reason or permission from a judge.
Another thing to keep in mind is that if you do give your consent, then the police officer can search everything that you've allowed them to search. They can look in your bag, your car, your house, or anywhere else you've given them permission to look.
In summary, consent search is when you give permission to someone, like a police officer, to search your things. Giving consent means that they do not need any other legal authorization to search, but it's up to you to decide whether or not to give it.