What should the detective do to get enough dna?

i could could desire to basically say no, I mean, if a guy or woman won't be able to take hairspray or a bottle of shampoo on board these days i could could desire to think of that a metallic merchandise does no longer be allowed the two. G! (((Go8tm))) Dangit! I used all my brains cells in the final question, i'm clueless! Yeah, i understand, great ask your self, lol! : / enable me take yet yet another guess, is it lead from a pencil? Lol, this little pencil is finding at me in this field speaking approximately "Oops! It looks such as you have 4 misspelling(s). HA! No i do no longer,..do I? question,...Can it reflect something like mild or in spite of?