be suspicious of & be suspected of

be suspicious of
v. 怀疑
例句用法:
The locals tend to be suspicious of strangers.
当地人对陌生人往往有戒心.

be suspected of
被怀疑
例句用法:
be suspected of privity to a plot
被怀疑参与阴谋

suspect vt.是动词
（sb.）be suspected of a theft 有偷窃嫌疑

被.....怀疑

suspicious adj.是形容词
be suspicious of sb.(sth.) 对某人（某事）起疑心

对.....怀疑

可以比较两个例句看到两句意思的不同

be suspicious of 对.....怀疑

be suspected of 被....怀疑,被...质疑

suspicious是怀疑他人，主动的

suspected是值得怀疑的

The locals tend to be suspicious of strangers.