Forgery
Forgery is the copying of another persons writing or signature criminals use it for signing cheques Falsely
Aim - To find out which pen is used to write a forgery letter.
Hypothesis - We will know what pen was used.
Method - Beaker, Filter Paper, Pen, Sellotape , Water.
Method - Put a dot on the filter paper 2cm up.
Put 50ml of water in the beaker.
Put the paper in the water and leave for 5 minutes.
Attach a piece of the letter to the paper with sellotape
Compare the two ink marks.
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