I'm a Detective

Hi everybody for past I believe 1 weeks in reading I have been trying to solve a crime the crime of the muddy foot print my teacher took a photo of a muddy foot print and then we had to solve the crime she also took photos of suspects shoes and we had to compere the shoe print to the shoes and we had a match but we had to be positive if the polices didn't do proper investigation a lot of people who didn't do any crimes would get arrested so happened next was there were 4 markers and a wet bit of paper with some black red and blue on it and what we had to do with the markers was draw a line on a bit of paper and attached it to a pen and put it above a cup of water so the paper was in the water we had to leave them for a minute and see if one of them looked like the first bit of paper my one wasn't the right one in the end we found out Chris did it see ya hope you enjoyed.