Why would these items be ditched in a bag

[Hotairoverthere]

My son was playing nearby with some friends and they found a Nike bag. Inside they said there was scissors, gloves, bleach and socks. Instantly I felt chills and some criminal has hidden this bag in a bush at the end of our street but I can’t understand why...

Sounds pretty dodgy to me.
I would report it via 101, you never know.

Because they are items that could potentially be used to clean up a crime scene or be used in a crime. They are an odd combination of things in a dumped bag. Phone the police non emergency number and give them the details. Explain you felt it was an odd thing to find.

You need to report this OP, via 101. What have you done with the bag?

The children left the bag where they found it, so it is still in the bushes.

Have you phoned 101 yet?