DETROIT (AP) _ Two police officers were sentenced to up to 10 years in prison after being convicted of stopping a teen-ager's car and robbing him of $85.

Officers Nathaniel Bell, 35, and Douglas Hankins, 32, called Nathaniel Marshall a liar before they were sentenced Tuesday on armed robbery charges.

''I've been an officer since June 1977 and this is the job I love,'' Bell told Recorder's Court Judge James Chylinski. ''I did not - or my partner, either - ever come into contact with Mr. Marshall.''

Marshall ''has been lying since day one,'' added Hankins, a 12-year veteran named in 1988 as his section's Officer of the Year by the Detroit Police Officers Association.

Marshall, 18, testified that Bell and Hankins stopped his car in February 1989 on Detroit's northwest side. The plainclothes officers identified themselves as Detroit police, then brandished guns and took his wallet and the $85 in it, Marshall told the jury.

Bell received a one- to 10-year sentence, and Hankins received a 1 1/2 - to 10-year sentence on the armed robbery convictions. Bell also was convicted of using a firearm to commit a felony and received a mandatory two-year prison term.