. >> officers, david hamilton and meagan mcgee each have years of experience at second-guessing whereto hide contraband. >> okay. i found two razors that were removed. the blades were removed from the disposable razors. and these can be melted into a toothbrush handle, used as real good slashing instruments because they are solid, very sharp razors. >> there's another one. >> looks like my partner has found another one. i'm going to confiscate these. they have about 20 of them. and they're only supposed to have, like, one each. >> this was manufactured from a bed spring. >> officer steve feudner works for san quentin's investigative unit, where they keep a collection of confiscated inmate manufactured weapons. >> the inmates pry a portion of their bed spring off of the bunk rail. they straighten it. they sharpen it. and this inmate used string for the handle. these weapons are very well made, extremely sharp. very deadly weapons. >> we got about a two inch, two to four inch piece of bed spring that's missing out of here. >> it's not red painted. >> strange. >> top or bottom? >> bottom