Police And Sniffer Dogs Ahead of NYE in London

The video tutorial explains the importance of sealing a face if it is split and describes the verification process to ensure everything is checked properly.

What does it mean if something is split according to the text?

What is the significance of having a seal on something that is split?

What implications does a split have on the integrity of an object?

How can you determine if you've checked everything?

In what context might the phrase 'you've checked' be used?